Observation field: Other Prey Species
james5
Observations specifying this field
| Observation | Other Prey Species |
|---|---|
Photos / SoundsWhatOwls (Order Strigiformes)Observerkyle_eaton_photographyDescriptionI found this wet owl pellet under a Coast Live Oak grove. It was pouring rain. Organisms in it: |
Rodents (Order Rodentia) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl Pellet #A-43 Location: (Site-A) Found across the sidewalk from the pine tree where this owl roosts:
Pellet length: 2 in (5 cm)
This pellet contained the remains of:
|
Pocket Mice (Subfamily Perognathinae) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl Pellet #A-40. Location: (Site-A) Found on the sidewalk under the pine tree where this owl roosts:
Pellet length: 2.25 in (5.7 cm)
This pellet contained the remains of:
|
Pocket Mice (Subfamily Perognathinae) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl Pellet #A-39 Location: (Site-A) Found under the pine tree where this owl roosts:
Pellet length: 2.8 in (7 cm)
This pellet contained the remains of:
|
California Vole (Microtus californicus) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl Pellet #A-22
Location: (Site-A) Found under the pine tree where this owl roosts:
Pellet length: 1.25 in (3.2 cm)
It's amazing that the remains of 3 species and possibly 5-6 individuals were found in this small pellet:
Note: I don't have a photo that shows all contents together. |
Western Harvest Mouse (Reithrodontomys megalotis) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl pellet #A-35.
Pellet length: 2 in (5 cm)
This pellet contained the remains of:
|
Western Harvest Mouse (Reithrodontomys megalotis) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl pellet #A-33 Pellet length: 2 in (5 cm)
This pellet contained the remains of:
|
Western Harvest Mouse (Reithrodontomys megalotis) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl pellet #A-29 Location: (Site-A) Found under the pine tree where this owl roosts:
Pellet length: 2 in (5 cm)
This pellet contained the remains of:
|
North American Jerusalem Crickets (Genus Ammopelmatus) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl Pellet #A-28 (Site-A)
Pellet length: 2 in (5 cm)
This pellet contained the remains of:
|
Western Harvest Mouse (Reithrodontomys megalotis) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl Pellet #A-23 Location: (Site-A) Found under the pine tree where this owl roosts:
Pellet length: ~1.75 in (4.4 cm)
Note: this pellet was partially disintegrated and a skull was lying next to it. This pellet contained the remains of 3 species:
|
California Vole (Microtus californicus) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl pellet #A-24 Location: (Site-A) Found under the pine tree where this owl roosts:
Pellet length: 1.5 in (4 cm)
This pellet contained the remains of two species and 7 individuals:
Note: This pellet was particularly interesting because it had the remains of at least 5 Jerusalem crickets (10 mandibles, large & small). Some of these could be seen on the outside of the pellet. |
Western Harvest Mouse (Reithrodontomys megalotis) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn owl pellet #B-02 found under an oak tree near the owl's nest box (Site B). Pellet length: 2 in (5 cm)
This pellet contained the remains of the following species:
|
California Vole (Microtus californicus) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl Pellet #A-18 Location: (Site-A) Found under the pine tree where this owl roosts:
Pellet length: This pellet measured 4 inches, but it was disintegrated. The actual length was probably closer to 2 in (5 cm). Notice the bones on the exterior of the pellet. Pellet age: < 2 weeks
This pellet contained the remains of 3 individuals:
Note: I didn't get a group photo for this pellet. |
North American Deer Mice (Genus Peromyscus) |
| unknown | |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl Pellet #A-14 Location: (Site-A) Found under the pine tree where this owl roosts:
Pellet length: 6 cm (2.3 in)
This small pellet amazingly contained the remains of 4 species:
|
North American Jerusalem Crickets (Genus Ammopelmatus) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl Pellet #A-01 Location: (Site-A) Found under the pine tree where this owl roosts:
Pellet length: not measured
This pellet contained the remains of two species:
|
North American Deer Mice (Genus Peromyscus) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl Pellet #A-02 Location: (Site-A) Found under the pine tree where this owl roosts:
Pellet length: not measured
This pellet contained the remains of two species:
|
Western Harvest Mouse (Reithrodontomys megalotis) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl Pellet #A-03 Location: (Site-A) Found under the pine tree where this owl roosts:
Pellet length: not measured
This pellet contained the remains of two species:
|
Meadow Voles (Genus Microtus) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl Pellet #A-04 Location: (Site-A) Found under the pine tree where this owl roosts:
Pellet length: not measured
This pellet contained the remains of two species:
|
North American Deer Mice (Genus Peromyscus) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl pellet #A-10 Location: (Site-A) Found under the pine tree where this owl roosts:
Pellet length: 2 in (5 cm)
This pellet contained the remains of two species:
|
Western Harvest Mouse (Reithrodontomys megalotis) |
Photos / SoundsWhatBarn Owl (Tyto alba)ObservertruthseqrDescriptionBarn Owl Pellet #A-09 Location: (Site-A) Found under the pine tree where this owl roosts:
Pellet length: not measured
This pellet contained the remains of two species:
|
North American Mice and Rats (Subfamily Neotominae) |
| unknown | |
Photos / SoundsWhatGreat Horned Owl (Bubo virginianus)ObserverjspruillDescriptionThe active nest is about 50 yards from where I found the pellet. I will keep it in my freezer in case anyone wants to use it for study. |
unknown |
Photos / SoundsWhatOwls (Order Strigiformes)Observerkyle_eaton_photographyDescriptionThis observation is for the owl species that left this owl pellet. Found in the dirt beneath a grove of Coast Live Oaks. It contained rodent bones and grey fur. This area is home to Barn Owls and Great Horned Owls. It was compact. |
Rodents (Order Rodentia) |
Photos / SoundsWhatOwls (Order Strigiformes)Observerkyle_eaton_photographyDescription(For the owl). An 8.5cm long owl pellet found among the sparse leaf litter under some Coast Live Oaks in a clearing next to a public restroom. This pellet contained a North American Jerusalem Cricket, gray fur, and bones of a California Vole.
Resident owls include Barn Owls and sometimes a Great Horned Owl. A Western Screech used to be found here, but hasn't been seen in a few years.
|
California Vole (Microtus californicus) |
| Phylloxera querceti | |
| unknown | |
| unknown | |
Photos / Sounds
WhatGreat Horned Owl (Bubo virginianus)ObserverkmelvilleDescriptionFound under one of the owl's usual roots. Had been regurgitated within the past 24 hours with a few hollow shafts/calami (I believe them to be from a ring-necked pheasant as I found a large scattering of pheasant feathers under the roost 2 days prior) |
Ring-necked Pheasant (Phasianus colchicus) |
| unknown |
Projects Using This Field
@james5: You might want to change this to a taxon field too. But note the system doesn't automatically do a lookup on the old text value and translate to a taxon value (stored as its taxon number). So on each observation that uses it you will manually have to edit the field and get it to do the taxon lookup and save.
In this case it is trival as there is only one observation with an actual value:
http://www.inaturalist.org/observations/1628196.
Mind you an advantage of having a text field, is that people can add multiple species on one line - difficult to search for later though!
I note that iNaturalist doesn't really handle multiple copies of the same type of field well (you can't ask it to lookup all the species in the "preyed on" field and the "other prey species field" at the same time).