Monday, August 5, 2013

Yellow-headed Blackbird

While at the 180th Street Marsh in Dakota County, Minnesota, John Holden and I heard and then saw this juvenal Yellow-headed Blackbird. Because of its white belly, black flanks, and tan head and breast, this plumage is poorly portrayed in many field guides. Minnesota and Wisconsin are about as far east as this blackbird breeds in North America. They are become common as you travel west. Most winter in Mexico.

Breeding Yellow-headed Blackbirds are polygynous, with males holding grouped territories. Females pick nesting locations within a male’s territory. Although they usually raise but one brood, females sometimes lay eggs in more than one nest (Twedt and Crawford 1995).

No comments:

Post a Comment