Sterna Dougallii Population Declines Worry Coastal Scientists
Sterna is a genus of terns in the bird family Laridae. The genus used to encompass most "white" terns indiscriminately, but mtDNA sequence comparisons have determined that this arrangement was. Learn about Sterna sp.: explore photos, sounds, and observations collected by birders around the world. The most typical terns are the approximately 30 species of the genus Sterna, with forked tail, black cap or crest, and pale body. Dec 17, 2002 · Common terns are found from northern Canada south to the Caribbean Sea, as well as throughout Europe, Northern Asia, North Africa, and the Middle East. Some populations of common. Common Tern - Sterna hirundo - Species Information and Photos, including id keys, habitat, diet, behavior, nesting, migration, and conservation status
A Roseate Tern (Sterna dougallii), circa 1850. (Photo by Hulton Archive ...
