We present the first quantitative assessment of winter site fidelity for House Wren, Gray Catbird
, and Orange-crowned Warbler.
We analyzed one seasonal frugivore in the early-successional habitat guild: Gray Catbird
Tail-fanning also, at times, accompanied wing-flashing, similar to that of the Gray Catbird
Fitness costs and benefits of cowbird egg ejection by Gray Catbirds
More than 45 different species have been spotted on the property, including great blue herons, gray catbirds
, ducks, turkeys and prairie warblers.
Novel method for estimating hours of oviposition, illustrated by data on Gray Catbirds
Diurnal condition slopes did not differ significantly from zero in six taxa: Empidonax, Gray-cheeked Thrushes (Catharus minimus), Gray Catbirds
(Dumetella carolinensis), Worm-eating Warblers (Helmitheros vermivorum), Yellow-breasted Chats (Icteria virens), Painted Buntings (Passerina ciris), and Indigo Buntings (P.
These findings, combined with reservoir competence data, suggest that house sparrows are amplifying hosts in urban locales; however, other resident bird species, such as the northern cardinal, house finch, and gray catbird
, were also frequently exposed to WNV (30).
The gray catbird
(Dumetella carolinensis), a migratory passerine bird, is known to be infected with the blood parasite Plasmodium relictum.
(Dumetella carolinensis) was the most-caught bird (14 captures), followed by Acadian Flycatcher (Empidonax virescens) (10) and Song Sparrow (Melospiza melodia) (9).
Low nest predation for the Gray Catbird
may be attributed to several factors.
but seven (Turkey Vulture, House Wren, Blue-gray Gnatcatcher, Gray Catbird
, Yellow-rumped Warbler, Palm Warbler, and Common Yellowthroat).
We documented interdecadal variation in three long-distance migrants (Common Yellowthroat [Geothlypis trichas], Veery, Gray Catbird
[Dumetella carolinensis]) and two short-distance migrants (Ruby-crowned Kinglet, White-throated Sparrow [Zonotrichia albicollis]).
Northern cardinal, gray catbird
(Dumetella carolinensis), American robin, and blue jay (Cyanocitta cristata) accounted for 64% of the identifications.
The gray catbird
, for example, can develop his singing skills with no help from teachers.