April 1, 2020

Brown-Headed Cowbird

I saw this bird at my feeder this morning for the first time; I've never seen it before, but upon further research they appear to be quite common along the East Coast. 

Photo Credit: Sheila Brown
From Wikipedia:

The brown-headed cowbird (Molothrus ater) is a small obligate brood parasitic icterid of temperate native to subtropical North America...

The brown-headed cowbird is typical for an icterid in general shape, but is distinguished by a finch-like head and beak and its smaller size. The adult male is iridescent black in color with a brown head. The adult female is slightly smaller and is dull grey with a pale throat and very fine streaking on the underparts...

The species lives in open or semi-open country and often travels in flocks, sometimes mixed with red-winged blackbirds (particularly in spring) and bobolinks (particularly in fall), as well as common grackles or European starlings.[2] These birds forage on the ground, often following grazing animals such as horses and cows to catch insects stirred up by the larger animals. They mainly eat seeds and insects.

Before European settlement, the brown-headed cowbird followed bison herds across the prairies. Its population expanded with the clearing of forested areas and the introduction of new grazing animals by settlers across North America. Brown-headed cowbirds are now commonly seen at suburban birdfeeders.