I originally found this bird while scouting for the Austin Christmas Bird Count. On the day of the count, 12/20/14, other birders ended up birding this trail since I had to cover another area. They heard two Catbirds.
On this date, I returned and was able to get photos of the bird. It appeared to be content to stay partially hidden in the tangle.
Another group on the Austin CBC also saw a Gray Catbird and was able to photograph it. Rare bird documentation was provided to the CBC reviewer for both sightings.
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 trembler assemblage than of the mockingbirds and Toxostoma thrashers. In some areas it is known as the Slate-colored Mockingbird.