Eldorado Canyon State Park lies eight miles southwest of the city of Boulder along the eastern edge of the Front Range of the Rocky Mountains in an ecotone between the grasslands below and coniferous forests above the park. The park is made up of 1,442 acres owned by the State of Colorado and ...more ↓
The red-headed woodpecker (Melanerpes erythrocephalus) is a small or medium-sized woodpecker from temperate North America. Their breeding habitat is open country across southern Canada and the eastern-central United States. The species is listed as Near Threatened by the IUCN.
The Lewis's Woodpecker (Melanerpes lewis) is a large North American species of woodpecker which was named by ornithologist Alexander Wilson for Meriwether Lewis, one of the explorers who surveyed the areas bought by the United States of America during the Louisiana Purchase.
The Northern Flicker (Colaptes auratus) is a medium-sized member of the woodpecker family. It is native to most of North America, parts of Central America, Cuba, the Cayman Islands, and is one of the few woodpecker species that migrate. There are over 100 common names for the Northern Flicker. Among them are: Yellowhammer, clape, gaffer woodpecker, harry-wicket, heigh-ho, ...more ↓
The Red-naped Sapsucker (Sphyrapicus nuchalis) is a medium-sized North American woodpecker. Long thought to be a subspecies of the Yellow-bellied Sapsucker, it is now known to be a distinct species.
Williamson's Sapsucker, Sphyrapicus thyroideus, is a medium-sized woodpecker belonging to the genus Sphyrapicus (sapsuckers).
The downy woodpecker (Dryobates pubescens) is a species of woodpecker, the smallest in North America.
The hairy woodpecker (Leuconotopicus villosus) is a medium-sized woodpecker, averaging approximately 250 mm (9.8 in) in length with a 380 mm (15 in) wingspan. With an estimated population in 2003 of over nine million individuals, the hairy woodpecker is listed by the IUCN as a species of least concern in North America. Some taxonomic authorities, including the American ...more ↓
The Three-toed Woodpecker (Picoides tridactylus) is a medium-sized woodpecker.
The Eastern Screech Owl or Eastern Screech-Owl (Megascops asio) is a small owl that is relatively common in Eastern North America, from Mexico to Canada.
The Northern Pygmy Owl (Glaucidium gnoma), known as Northern Pygmy-Owl in North America, is a small owl native to North and Central America.
The Great Horned Owl, (Bubo virginianus), also known as the Tiger Owl, is a large owl native to the Americas. It is an adaptable bird with a vast range and is the most widely distributed true owl in the Americas.
The northern saw-whet owl (Aegolius acadicus) is a small owl native to North America.
The flammulated owl (Psiloscops flammeolus) is a small, nocturnal owl approximately 15 centimetres (6 in) long with a 36 centimetres (14 in) wingspan. Males and females can be distinguished by their weight. Females are larger, ranging from 62–65 grams (2.2–2.3 oz) and males are smaller ranging from 50–52 grams (1.8–1.8 oz). The owl gets the name flammulated from the flame like ...more ↓
The Belted Kingfisher (Megaceryle alcyon) is a large, conspicuous water kingfisher, the only member of that group commonly found in the northern United States and Canada. It is depicted on the 1986 series Canadian $5 note. All kingfishers were formerly placed in one family, Alcedinidae, but recent research suggests that this should be divided into three. All six New World ...more ↓
The rock dove (Columba livia) or rock pigeon is a member of the bird family Columbidae (doves and pigeons). In common usage, this bird is often simply referred to as the "pigeon".
The Band-tailed Pigeon (Patagioenas fasciata) is a medium-sized bird of the Americas. Its closest relatives are the Chilean Pigeon and the Ring-tailed Pigeon, which form a clade of Patagioenas with a terminal tail band and iridescent plumage on their necks.
The mourning dove (Zenaida macroura) is a member of the dove family, Columbidae. The bird is also known as the American mourning dove or the rain dove, and erroneously as the turtle dove, and was once known as the Carolina pigeon or Carolina turtledove. It is one of the most abundant and widespread of all North American birds. It is also a ...more ↓
The Turkey Vulture (Cathartes aura), also known in some North American regions as the turkey buzzard (or just buzzard), and in some areas of the Caribbean as the John crow or carrion crow, is the most widespread of the New World vultures. One of three species in the genus Cathartes, in the family Cathartidae, the Turkey Vulture ranges from ...more ↓
The Dusky Grouse (Dendragapus obscurus) is a species of forest-dwelling grouse native to the Rocky Mountains in North America. It is closely related to the Sooty Grouse (Dendragapus fuliginosus), and the two were previously considered a single species, the Blue Grouse.
The wild turkey (Meleagris gallopavo) is an upland ground bird native to North America and is the heaviest member of the diverse Galliformes. It is the same species as the domestic turkey, which was originally derived from a southern Mexican subspecies of wild turkey (not the related ocellated turkey). Although native to North America, the turkey probably got its name from the ...more ↓
Wilson's snipe (Gallinago delicata) is a small, stocky shorebird. The genus name gallinago is New Latin for a woodcock or snipe from Latin gallina, "hen" and the suffix -ago, "resembling". The specific delicata is Latin for "dainty".
The great blue heron (Ardea herodias) is a large wading bird in the heron family Ardeidae, common near the shores of open water and in wetlands over most of North America and Central America, as well as the Caribbean and the Galápagos Islands. It is a rare vagrant to coastal Spain, the Azores, and areas of far southern Europe. An all-white population found only in the Caribbean ...more ↓
The merlin (Falco columbarius) is a small species of falcon from the Northern Hemisphere. A bird of prey once known colloquially as a pigeon hawk in North America, the merlin breeds in the northern Holarctic; some migrate to subtropical and northern tropical regions in winter.
The Prairie Falcon (Falco mexicanus) is a medium-sized falcon of western North America.
The peregrine falcon (Falco peregrinus), also known as the peregrine, and historically as the duck hawk in North America, is a widespread bird of prey in the family Falconidae. A large, crow-sized falcon, it has a blue-grey back, barred white underparts, and a black head. As is typical of bird-eating raptors, peregrine falcons are sexually dimorphic, with females ...more ↓
The American Kestrel (Falco sparverius), sometimes colloquially known as the Sparrow Hawk, is a small falcon, and the only kestrel found in the Americas. It is the most common falcon in North America, and is found in a wide variety of habitats. At 19–21 cm (7–8 in) long, it is also the smallest falcon in North America. It exhibits sexual dimorphism in size and plumage, ...more ↓
The common nighthawk (Chordeiles minor) is a medium-sized crepuscular or nocturnal bird within the nightjar family, whose presence and identity are best revealed by its vocalization. Typically dark (grey, black and brown), displaying cryptic colouration and intricate patterns, this bird is difficult to spot with the naked eye during the day. Once aerial, with its buoyant but ...more ↓
The Common Poorwill (Phalaenoptilus nuttallii) is a nocturnal bird of the family Caprimulgidae, the nightjars. It is found from British Columbia and southeastern Alberta, through the western United States to northern Mexico. The bird's habitat is dry, open areas with grasses or shrubs, and even stony desert slopes with very little vegetation.
The Calliope Hummingbird (Selasphorus calliope) is a very small hummingbird native to the United States and Canada and, during winter, Central America. It was previously considered the only member of the genus Stellula, however recent evidence suggests placement in the genus Selasphorus. This bird was named after the Greek muse Calliope. The genus name means ...more ↓
The Broad-tailed hummingbird (Selasphorus platycercus) is a medium-sized hummingbird, nearly 4 in (10 cm) in length.
The Rufous Hummingbird (Selasphorus rufus) is a small hummingbird, about 8 cm long (3 inches) with a long, straight and very slender bill. The female is slightly larger than the male.
The black-chinned hummingbird (Archilochus alexandri) is a small hummingbird. It is an extremely adaptable bird, occupying a broad range of habitats.
The White-throated Swift (Aeronautes saxatalis) is a swift of the family Apodidae native to western North America, south to cordilleran western Honduras. It is migratory, and travels to the southern part of its range in winter, as far north along the Pacific coast as the Californian Central Valley; inland its range extends throughout the Great Basin region to extreme southern ...more ↓
The chimney swift (Chaetura pelagica) is a bird belonging to the swift family Apodidae. A member of the genus Chaetura, it is closely related to both the Vaux's swift and the Chapman's swift; in the past, the three were sometimes considered to be conspecific. It has no subspecies. The chimney swift is a medium-sized, sooty gray bird with very long, slender wings and very ...more ↓
The mallard (/ˈmælɑːrd/ or /ˈmælərd/) or wild duck (Anas platyrhynchos) is a dabbling duck which breeds throughout the temperate and subtropical Americas, Europe, Asia, and North Africa, and has been introduced to New Zealand, Australia, Peru, Brazil, Uruguay, Argentina, Chile, the Falkland Islands and South Africa. This duck belongs to the subfamily Anatinae of the ...more ↓
The Common Merganser (North American) or Goosander (Eurasian) (Mergus merganser) is a large duck, of rivers and lakes of forested areas of Europe, northern and central Asia, and North America. It eats fish and nests in holes in trees. John James Audubon called this bird the "Buff-breasted Merganser" in his book The Birds of America.
The Canada Goose (Branta canadensis) is a goose with a black head and neck, white patches on the face, and a brownish-gray body. Native to arctic and temperate regions of North America, it also occasionally migrates to northern Europe, and has been introduced to Britain, New Zealand, and other temperate regions.
The Osprey (Pandion haliaetus), sometimes known as the sea hawk, fish eagle, or fish hawk, is a diurnal, fish-eating bird of prey. It is a large raptor, reaching more than 60 cm (24 in) in length and 180 cm (71 in) across the wings. It is brown on the upperparts and predominantly greyish on the head and underparts. In 1994, the osprey was declared the ...more ↓
The Golden Eagle (Aquila chrysaetos) is one of the best-known birds of prey in the Northern Hemisphere. It is the most widely distributed species of eagle. Like all eagles, it belongs to the family Accipitridae. These birds are dark brown, with lighter golden-brown plumage on their napes. Immature eagles of this species typically have white on the tail and often have white ...more ↓
Cooper's Hawk (Accipiter cooperii) is a medium-sized hawk native to the North American continent and found from Southern Canada to Northern Mexico. As in many birds of prey, the male is smaller than the female. The birds found east of the Mississippi River tend to be larger on average than the birds found to the west.
The northern goshawk /ˈɡɒs.hɔːk/ (Old English: gōsheafoc, "goose-hawk"), Accipiter gentilis, is a medium-large bird of prey in the family Accipitridae, which also includes other diurnal raptors, such as eagles, buzzards and harriers. As a species in the Accipiter genus, the goshawk is often considered a true "hawk".
The sharp-shinned hawk (Accipiter striatus) is a small hawk described from Hispaniola, with males being the smallest hawks in the United States and Canada, but with the species averaging larger than some Neotropical species, such as tiny hawk. The taxonomy is far from resolved, with some authorities considering the southern taxa to represent three separate species: ...more ↓
The Red-tailed Hawk (Buteo jamaicensis) is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West Indies, and is one of the most common buteos in North America. ...more ↓
The Bald Eagle (Haliaeetus leucocephalus; hali = sea, aeetus = eagle, leuco = white, cephalis = head) is a bird of prey found in North America. A sea eagle, it has two known sub-species and forms a species pair with the White-tailed Eagle (Haliaeetus albicilla). Its range includes most of Canada and Alaska, all of the contiguous United States, ...more ↓
The barn swallow (Hirundo rustica) is the most widespread species of swallow in the world. It is a distinctive passerine bird with blue upperparts, a long, deeply forked tail and curved, pointed wings. It is found in Europe, Asia, Africa and the Americas. In Anglophone Europe it is just called the swallow; in Northern Europe it is the only common species called a ...more ↓
The Tree Swallow (Tachycineta bicolor) is a migratory passerine bird that breeds in North America and winters in Mexico, Central America and the Caribbean. It is a very rare vagrant to western Europe.
The Violet-green Swallow (Tachycineta thalassina) is a small North American swallow.
The Northern Rough-winged Swallow (Stelgidopteryx serripennis) is a small swallow.
The American Cliff Swallow (Petrochelidon pyrrhonota) is a member of the passerine bird family Hirundinidae — the swallows and martins.
The Brewer's Blackbird (Euphagus cyanocephalus) is a medium-sized New World blackbird, named after the ornithologist Thomas Mayo Brewer.
The Brown-headed Cowbird (Molothrus ater) is a small brood parasitic icterid of temperate to subtropical North America. They are permanent residents in the southern parts of their range; northern birds migrate to the southern United States and Mexico in winter, returning to their summer habitat around March or April.
The Bullock's Oriole (Icterus bullockii) is a small New World blackbird. At one time, this species and the Baltimore Oriole were considered to be a single species, the Northern Oriole. This bird was named after William Bullock, an English amateur naturalist.
The Baltimore Oriole (Icterus galbula) is a small icterid blackbird that commonly occurs in eastern North America as a migratory breeding bird. This bird received its name from the fact that the male's colors resemble those on the coat-of-arms of Lord Baltimore. Like all icterids called "orioles", it is named after an unrelated, physically similar family found in the Old World: ...more ↓
The western meadowlark (Sturnella neglecta) is a medium-sized icterid bird, about 8.5 in (22 cm) in length. It nests on the ground in open grasslands across western and central North America. It feeds mostly on insects, but will also feed on seeds and berries. The western meadowlark has distinctive calls described as watery or flute-like, which distinguish it from the closely ...more ↓
The Common Grackle (Quiscalus quiscula) is a large icterid which is found in large numbers through much of North America.
The Red-winged Blackbird (Agelaius phoeniceus) is a passerine bird of the family Icteridae found in most of North and much of Central America. It breeds from Alaska and Newfoundland south to Florida, the Gulf of Mexico, Mexico, and Guatemala, with isolated populations in western El Salvador, northwestern Honduras, and northwestern Costa Rica. It may winter as far north as ...more ↓
The black-capped chickadee (Poecile atricapillus) is a small, nonmigratory, North American songbird that lives in deciduous and mixed forests. It is a passerine bird in the tit family Paridae. It is the state bird of both Maine and Massachusetts in the United States, and the provincial bird of New Brunswick in Canada. It is well known for its capacity to lower its body ...more ↓
The Mountain Chickadee (Poecile gambeli) is a small songbird, a passerine bird in the tit family Paridae. Often, it is still placed in the genus Parus with most other tits, but mtDNA cytochrome b sequence data and morphology suggest that separating Poecile more adequately expresses these birds' relationships (Gill et al., 2005). The American ...more ↓
The house sparrow (Passer domesticus) is a bird of the sparrow family Passeridae, found in most parts of the world. A small bird, it has a typical length of 16 cm (6.3 in) and a weight of 24–39.5 g (0.85–1.39 oz). Females and young birds are coloured pale brown and grey, and males have brighter black, white, and brown markings. One of about 25 species in the genus Passer, ...more ↓
The red-breasted nuthatch (Sitta canadensis) is a small songbird. The adult has blue-grey upperparts with cinnamon underparts, a white throat and face with a black stripe through the eyes, a straight grey bill and a black crown. Its call, which has been likened to a tin trumpet, is high-pitched and nasal. It breeds in coniferous forests across Canada, Alaska and the northeastern ...more ↓
The White-breasted Nuthatch (Sitta carolinensis) is a small songbird of the nuthatch family which breeds in old-growth woodland across much of temperate North America. It is a stocky bird, with a large head, short tail, powerful bill and strong feet. The upperparts are pale blue-gray, and the face and underparts are white. It has a black cap and a chestnut lower belly. The nine ...more ↓
The Pygmy Nuthatch (Sitta pygmaea) is a tiny songbird, about 10 cm (4 inches) long and about 10 grams in weight. It ranges from southern British Columbia south through various discontinuous parts of the western U.S. (northwest U.S., Sierra Nevada range, southern Rockies, etc.), to central Mexico. It is usually found in pines (especially Ponderosa Pines), Douglas-firs, and other ...more ↓
The common starling (Sturnus vulgaris), also known as the European starling, or in the British Isles just the starling, is a medium-sized passerine bird in the starling family, Sturnidae. It is about 20 cm (8 in) long and has glossy black plumage with a metallic sheen, which is speckled with white at some times of year. The legs are pink and the bill is black in ...more ↓
The Canyon Wren (Catherpes mexicanus) is a small North American songbird of the wren family Troglodytidae. It is resident throughout its range and is generally found in arid, rocky cliffs, outcrops and canyons. It is a small bird that is hard to see on its rocky habitat; however, it can be heard throughout the canyons by its distinctive loud and beautiful song. It is currently ...more ↓
The Rock Wren (Salpinctes obsoletus) is a small songbird of the wren family. It is the only species in the genus Salpinctes.
The House Wren (Troglodytes aedon) is a very small songbird of the wren family, Troglodytidae. It occurs from Canada to southernmost South America, and is thus the most widely distributed bird in the Americas. It occurs in most suburban areas in its range and it is the single most common wren. Its taxonomy is highly complex and some subspecies groups are often considered ...more ↓
The winter wren (Troglodytes hiemalis) is a very small North American bird and a member of the mainly New World wren family Troglodytidae. It was once lumped with Troglodytes pacificus of western North America and Troglodytes troglodytes of Eurasia under the name winter wren.
The American robin (Turdus migratorius) is a migratory songbird of the thrush family. It is named after the European robin because of its reddish-orange breast, though the two species are not closely related, with the European robin belonging to the Old World flycatcher family. The American robin is widely distributed throughout North America, wintering from southern Canada to ...more ↓
The hermit thrush (Catharus guttatus) is a medium-sized North American thrush. It is not very closely related to the other North American migrant species of Catharus, but rather to the Mexican russet nightingale-thrush.
Swainson's Thrush (Catharus ustulatus), also called Olive-backed Thrush, is a medium-sized thrush. It is a member of Catharus genus and is typical of it in terms of its subdued coloration and beautiful voice. Swainson's Thrush was named after William Swainson, an English ornithologist.
The Mountain Bluebird (Sialia currucoides) is a medium-sized bird weighing about 30 g (1.1 oz) with a length from 16–20 cm (6.3–7.9 in). They have light underbellies and black eyes. Adult males have thin bills that are bright turquoise-blue and somewhat lighter beneath. Adult females have duller blue wings and tail, grey breast, grey crown, throat and back. In fresh fall ...more ↓
The western bluebird (Sialia mexicana) is a small thrush, about 15 to 18 cm (5.9 to 7.1 in) in length. Adult males are bright blue on top and on the throat with an orange breast and sides, a brownish patch on back, and a gray belly and undertail coverts. Adult females have a duller blue body, wings, and tail than the male, a gray throat, a dull orange breast, and a gray belly ...more ↓
Townsend's Solitaire (Myadestes townsendi) is a medium-sized thrush, the only solitaire native to America north of Mexico.
The Red-eyed Vireo (Vireo olivaceus) is a small American songbird, 13–14 cm (5.1–5.5 in) in length. It is somewhat warbler-like but not closely related to the New World warblers (Parulidae). Common across its vast range, this species is not considered threatened by the IUCN.
The Plumbeous Vireo (Vireo plumbeus) is a small North American songbird, ranging from far southeastern Montana and western South Dakota south to the Pacific coast of Mexico, including the extreme southern regions of Baja California Sur. It is migratory, moving to the southern part of its range in winter, and its habitat generally encompasses open pine forests.
The Blue-headed Vireo (Vireo solitarius) is a Neotropical migrating song bird found in North and Central America. There are currently two recognized sub-species that belong to the Blue-headed Vireo. It has a range that extends across Canada and the eastern coast of the United-States, Mexico and some of Central America. It prefers large temperate forests with a mix of evergreen ...more ↓
The Ruby-crowned Kinglet (Regulus calendula) is a very small passerine bird found throughout North America. It is a member of the kinglet family. The bird has olive-green plumage with two white wing bars and a white eye-ring. Males have a red crown patch, which is usually concealed. The sexes are identical (apart from the crown), and juveniles are similar in plumage to adults. ...more ↓
The dark-eyed junco (Junco hyemalis) is a species of the juncos, a genus of small grayish American sparrows. This bird is common across much of temperate North America and in summer ranges far into the Arctic. It is a very variable species, much like the related fox sparrow (Passerella iliaca), and its systematics are still not completely untangled.
The Grasshopper Sparrow (Ammodramus savannarum) is a small American sparrow. The genus Ammodramus contains 9 species which inhabit grasslands and prairies.
The Vesper Sparrow (Pooecetes gramineus) is a medium-sized American sparrow. It is the only member of the genus Pooecetes.
The lark sparrow (Chondestes grammacus) is a fairly large American sparrow. It is the only member of the genus Chondestes.
The American tree sparrow (Spizelloides arborea), formerly known as the winter sparrow, is a medium-sized sparrow.
The Song Sparrow (Melospiza melodia) is a medium-sized American sparrow. Among the native sparrows in North America, it is easily one of the most abundant, variable and adaptable species.
Brewer's Sparrow (Spizella breweri) is a small, slim species of American sparrow in the family Emberizidae. This bird was named after the ornithologist Thomas Mayo Brewer.
The Chipping Sparrow (Spizella passerina) is a species of American sparrow in the family Emberizidae. It is widespread, fairly tame, and common across most of its North American range.
The Fox Sparrow (Passerella iliaca) is a large American sparrow. It is the only member of the genus Passerella, although some authors split the genus into four species (see below).
The Green-tailed Towhee (Pipilo chlorurus) is the smallest towhee, but is still one of the larger members of the "American sparrow" family Emberizidae.
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The Spotted Towhee (Pipilo maculatus) is a large New World sparrow. The taxonomy of the towhees has been debated in recent decades, and formerly this bird and the Eastern Towhee were considered a single species, the Rufous-sided Towhee. An archaic name for the Spotted Towhee is the Oregon Towhee (Pipilo maculatus oregonus).
The Savannah Sparrow (Passerculus sandwichensis) is a small American sparrow. It is the only widely accepted member of the genus Passerculus. Comparison of mtDNA NADH dehydrogenase subunit 2 and 3 sequences indicates that the Ipswich Sparrow, formerly usually considered a valid species (as Passerculus princeps), is a well-marked subspecies of ...more ↓
The Yellow-breasted Chat (Icteria virens) is a large songbird, formerly considered the most atypical member of the New World warbler family, though the long-standing suspicion is that it does not actually belong there. Its placement is not definitely resolved. It is the only member of the genus Icteria.
The Gray Catbird (Dumetella carolinensis), also spelled Grey Catbird, is a medium-sized northern American perching bird of the mimid family. It is the only member of the "catbird" genus Dumetella. Like the Black Catbird (Melanoptila glabrirostris), it is among the basal lineages of the Mimidae, probably a closer relative of the Caribbean thrasher and ...more ↓
The Lazuli Bunting (Passerina amoena) is a North American songbird named for the gemstone lapis lazuli.
Blue Grosbeak (Passerina caerulea, formerly Guiraca caerulea), is a medium-sized seed-eating bird in the same family as the Northern Cardinal, "tropical" or New World buntings, and "cardinal-grosbeaks" or New World grosbeaks.
The Indigo Bunting (Passerina cyanea) is a small seed-eating bird in the family Cardinalidae. It is migratory, ranging from southern Canada to northern Florida during the breeding season, and from southern Florida to northern South America during the winter. It often migrates by night, using the stars to navigate. Its habitat is farmland, brush areas, and open woodland. The ...more ↓
The Rose-breasted Grosbeak (Pheucticus ludovicianus) is a large insect-eating songbird in the cardinal family (Cardinalidae). It is primarily a foliage gleaner. It breeds in cool-temperate North America, migrating to tropical America in winter.