Birding with Kenn and Kimberly

Adult Roseate Tern on Eastern Egg Rock, Maine, in June 2011. From Oak Harbor, Ohio, Kenn writes: Terns may be the ultimate summer birds. They are related to gulls, but gulls thrive in cold weather, some even spending the winter north of the Arctic Circle. Terns, by contrast, love warm climates. In much of North America, they are most prevalent during the summer. About ten days ago, thanks to the generosity of Dr. Steve Kress and his highly successful Project Puffin, Kimberly and I were able to visit Eastern Egg Rock, in the Gulf of Maine. We did see puffins there, and many other birds as well; maybe Kim will blog about the puffins (hint, hint). But I was most pleased by the opportunity to look closely at Roseate Terns. Some treatments of tern identification focus on bill color. The mostly-blackish bill of Roseate Tern can be useful for quick ID, but it’s tricky, too: other terns have blackish bills for part of the year, and in transitional stages they can show color patterns m