Breeds along lakes, rivers, bogs, moors, grasslands, swamps, and coastal marshes. In winter, found primarily along seacoasts, estuaries, and bays.Back to top
Insects, worms, fish, mice, garbage, some seeds and berries.Back to top
Shallow scrape lined with pieces of vegetation; in wet sites, built up into substantial mound. Placed on ground in low vegetation.
|Clutch Size:||1-4 eggs|
|Egg Description:||Dull green to gray, blotched with brown.|
|Condition at Hatching:||Semiprecocial with eyes open. Covered in down. Able to stand within a day, but usually remain quiet in nest for a week.|
Forages while walking or swimming. Flies along and plucks food from surface of water, or plunges into water to pick food from water. Follows plows. Catches flying insects on the wing.Back to top
Black-headed Gull are abundant, and expanding their range in Europe. The North American Waterbird Conservation Plan estimates a population of 40 breeders, and 400 non-breeders in North America, and lists them as a Species of Moderate Concern. They rate a 15 out of 20 on the Continental Concern Score and are not on the 2014 State of the Birds Watch List.Back to top
American Ornithologists' Union. 1998a. Check-list of North American birds. 7th edition ed. Washington, D.C.: American Ornithologists' Union.
Kushlan, J. A., M. J. Steinkamp, K. C. Parsons, J. Capp, M. A. Cruz, M. Coulter, I. Davidson, L. Dickson, N. Edelson, R. Elliott, R. M. Erwin, S. Hatch, S. Kress, R. Milko, S. Miller, K. Mills, R. Paul, R. Phillips, J. E. Saliva, W. Sydeman, J. Trapp, J. Wheeler and K. Wohl. 2002. Waterbird conservation for the Americas: The North American waterbird conservation plan, version 1. Washington, D.C.: Waterbird Conservation for the Americas.
North American Bird Conservation Initiative. 2014. The State of the Birds 2014 Report. US Department of Interior, Washington, DC, USA.
Sibley, David Allen. 2014. The Sibley guide to birds, second edition. Alfred A Knopf, New York.