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Friday, September 7, 2018

Oklahoma Breeding Bird Species Profile: Gray Catbird




This video on assorted avian mimicked voices was a remarkable rendition by a California Gray Catbird.  Never have I heard such accomplished material, for this is what I would expect from an older bird that has seen many breeding seasons.  A bird like this could easily have his choice of mates, for a female would easily realize how special he really is for the valuable syrinx that he has.

A uniform gray bird with a black cap, long black tail and rufous undertail coverts, this is a gorgeous and remarkable bird once it opens its mouth.

Common to uncommon in brushy thickets in woods, along forest edges, parks, often in damp shaded areas, as well as generally solitary.  However, the exception is when the male sings from an exposed perch to attract a female or protect his territory.  This species forages at ground level for berries, insects, and other invertebrates.


                                                                 Gray Catbird
                                                        South Padre Island, TX 2015

Mimic thrushes like this are talented, as well as natural mimics, and one of ten in the Mimidae family.  The harsh mew of this bird is especially diagnostic in the field, especially if heard near the ground.  Females also sing, though rarely, and not nearly at as much of a volume.  Catbirds, like Northern Mockingbirds, often sing at night.

Rather tame, it will respond readily to pishing calls and will come quite near.

Catbirds are late spring migrants, arriving on breeding grounds from May to June, and fall migration is between late August and September.  Birds residing on the coast sometimes choose not to migrate.

The Brown-headed Cowbird parasitizes this species, but may not in Oklahoma.  In other locations, the female simply ejects cowbird eggs.  The territoriality of the Grey Catbird is restricted to the area of the nest site.  The female does most of the nest building, though the male will provide the supplies.  He will even actually point out possible sites by sitting on branches and moving twigs about as though constructing a nest.  Incubation is solely by the female.  The male doesn't feed her very much during this time.  The species is known to double brood.




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