Habitat loss and nest predation by brown-headed cowbirds are both implicated.    From Wordnik.com.  [From Twitter 04-28-2010] Reference

Blue jays, brown-headed cowbirds, sparrows and titmicen are all crowding in for seed.    From Wordnik.com.  [Waldo Jaquith - Female cardinal.] Reference

It was here that the severe impact of brown-headed cowbirds (Molothrus ater) on songbirds was well documented.    From Wordnik.com.  [Upper Midwest forest-savanna transition] Reference

Jim LaCour said that the grackles, starlings, brown-headed cowbirds and red-winged blackbirds had broken beaks and backs.    From Wordnik.com.  [Apocalypse now? Mystery bird deaths hit Louisiana] Reference

I have to let him go, my son, my brown-headed son, I have to let him go across the sea into exile, not even knowing when I will see him again.    From Wordnik.com.  [The Red Queen] Reference

Edge environments also attract the brown-headed cowbird, which, instead of building its own nest, secretly deposits its eggs in the nests of many other birds.    From Wordnik.com.  [The Field Guide to Wildlife Habitats of the Eastern United States] Reference

The birds — a mixed flock of red-winged blackbirds, brown-headed cowbirds, grackles and starlings — may have hit a power line or vehicles in the dark, LaCour said.    From Wordnik.com.  [Louisiana has mass bird deaths just days after Arkansas] Reference

The insect passes the winter in oval cells as stout, whitish, brown-headed grubs about 1/4 of an inch long, the beetles appearing from the last of June to the last of July.    From Wordnik.com.  [Northern Nut Growers Association Report of the Proceedings at the Second Annual Meeting Ithaca, New York, December 14 and 15, 1911] Reference

The good news is that tree trunks are now large enough to interest bark-insect feeders such as downy, hairy, and red-cockaded woodpeckers and red-breasted, white-breasted, and brown-headed nuthatches.    From Wordnik.com.  [The Field Guide to Wildlife Habitats of the Eastern United States] Reference

Jaguars, spectacled bears, brown-headed spider monkeys, and plate-billed mountain toucans may all just breathe a little easier next week if Ecuadorians approve a new constitution in a referendum on Sunday that would grant these threatened animals 'habitats with inalienable rights.    From Wordnik.com.  [Ecuador's Constitution Gives Rights to Nature] Reference

A still smaller member of this group is the brown-headed nuthatch.    From Wordnik.com.  [Our Bird Comrades] Reference

The brown-headed Swallow, a common bird in the interior during the summer.    From Wordnik.com.  [Expedition into Central Australia] Reference

The birds that died -- red-winged blackbirds, common grackles, brown-headed cowbirds and.    From Wordnik.com.  [latimes.com - News] Reference

Even rare species of animals, like the mountain tapir and the brown-headed spider monkey, exist in the region.    From Wordnik.com.  [Original Signal - Transmitting Buzz] Reference

Wood ducks, cliff swallows, brown-headed nuthatch, yellow-throated vireo and wintering populations of bald eagles.    From Wordnik.com.  [chron.com Chronicle] Reference

Not sure if I'm correct with the bird identification, but this pretty one reminds me of a female brown-headed cowbird.    From Wordnik.com.  [Popular in the last 8 hours] Reference

The grackles, starlings, brown-headed cowbirds and red-winged blackbirds had broken beaks and backs, Jim LaCour said Tuesday.    From Wordnik.com.  [Thestar.com - Home Page] Reference

Unfortunately, they were being followed by brown-headed cowbirds, planning no doubt to put their eggs in the cardinal's nests.    From Wordnik.com.  [Corpus Christi Caller Times, Caller.com Stories] Reference

Some of these grackles, starlings, brown-headed cowbirds and red-winged blackbirds may have flown into a power line, officials said.    From Wordnik.com.  [Thestar.com - Home Page] Reference

A couple of rufous, brown-headed, and dirty speckle-breasted swallows appeared to-day for the first time this season, and lighted on the ground.    From Wordnik.com.  [The Last Journals of David Livingstone from 1865 to His Death]

So, whether rich men or poor, healthy or sick, brown-headed or gray, we will go on like children, with eyes for all beauty and hearts for all fun.    From Wordnik.com.  [The Busted Ex-Texan and Other Stories] Reference

The birds - a mixed flock of red-winged blackbirds, brown-headed cowbirds, grackles and starlings - may have hit a power line or vehicles in the dark, LaCour said.    From Wordnik.com.  [Yahoo! News: Business - Opinion] Reference

Then, a couple of days later in Louisiana, hundreds more birds - blackbirds, starlings, brown-headed cowbirds and grackles - expired in a similarly bizarre fashion.    From Wordnik.com.  [latimes.com - News] Reference

The common cuckoo and brown-headed cowbird are specialists in brood parasitism, shifting the burden of parental care onto other species rather than building their own nests.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

We spent Memorial Day weekend prowling the forest for nesting migratory birds - vireos, thrushes, warblers and buntings - in addition to resident nesting birds such as brown-headed nuthatches and Bachman's sparrows.    From Wordnik.com.  [chron.com Chronicle] Reference

The usual pine forest suspects were also present, including brown-headed and white-breasted nuthatches, red-bellied and downy woodpeckers, Eastern bluebird, tufted titmouse, Carolina chickadee, cardinals, and blue jays.    From Wordnik.com.  [TheSunNews.com: Local] Reference

(Unless it's brown-headed cowbirds parasitizing nests of songbirds with declining population.    From Wordnik.com.  [When eagles go bad, one more time] Reference

Listen for—“yank-yank-yank” that sounds like the woodpecker’s associate, the brown-headed nuthatch.    From Wordnik.com.  [The Field Guide to Wildlife Habitats of the Eastern United States] Reference

The brown-headed ‘equerry’ he had recognised immediately as Jonathan Eager-Wright, probably the most daring amateur mountaineer in Europe and a member of one of England’s oldest families.    From Wordnik.com.  [Sweet Danger]

A pair of brown-headed cowbirds are courting.    From Wordnik.com.  [Archive 2008-04-01] Reference

The primates include the western night monkey (Aoutis lemurinus), Central American spider monkey (Ateles geoffroyi), brown-headed spider monkey (Ateles fuscipes), Geoffroy’s tamarin (Saguinus geoffroyi.), mantled howler monkey (Alouatta palliata) and white-faced capuchin (Cebus capucinus).    From Wordnik.com.  [Eastern Panamanian montane forests] Reference

Brown-headed, 286, 291, 292.    From Wordnik.com.  [The Field Guide to Wildlife Habitats of the Eastern United States] Reference