Just "click on the thumbnails" for successively larger images--small, medium, and HUGE!
Gliding Forster's Tern
Forster's Tern- Sterna forsteri
Forster's Tern- Sterna forsteri, Order Charadriiformes, Family Laridae, Subfamily Sterninae. These terns were making the rounds at Acton Lake on this beautiful Sunday afternoon. Two of the finest bird enthusiasts I know had difficulty identifying the bird from the admittedly poor photographs. From Dave Russel "This week we have had Common, Forster's, Caspian, and Black Terns at Acton. This being said--because of some lesser characters that are not 100 % reliable I think it is Forster's Tern-- white not gray breast (light dependent), amount white between bill and black cap, orange not orange -red bill (also light dependent)." Casey Tucker thought it could go either way, but, at this point was leaning towards a Common Tern.
(Photo: Aug 22, 2004, Canon EOS 1D Mark II digital camera with EF 400mm f/5.6 USM)
"One of several medium-sized terns that appear similar in appearance, the Forster's Tern breeds primarily in marshes and winters along the coasts. The comma-shaped black ear patch in winter plumage is distinctive, but some other plumages are very confusing. Forster's Tern is the only tern restricted almost entirely to North America throughout the year."
Photos Copyright R. Hays Cummins. Authorization required. For permission, contact firstname.lastname@example.org
Sources of species identification and other amazing info include (1) Cornell Lab of Ornithology--a fantastic site; (2)Birds of Eastern and Central North America, Peterson Field Guide Series, Fifth Edition, Houghton Mifflin Company; (3) The National Audubon Society's Sibley Guide to Birds and (4) Field Guide to the Birds of North America, Third Edition, National Geographic, Washington, D.C.
Winter/Spring Bird Collection Quicktime Movie
A quicktime movie (CLICK on image Above) of bird photos taken over the 2004/ Winter/Spring/Summer/Fall. I used a Canon 10D digital camera (now a Canon Mark II) with a Canon 100-400 f4.5-5.6 IS L lens, a Canon 300 f4.0 IS L lens, a Canon 400 5.6 L lens, a Canon 500 f4.0 IS L lens, and a Canon 600 f4.0 IS L lens.
Site NAVIGATION--Table of Contents
Listen to a "Voice Navigation" Intro!
(Quicktime or MP3)
WEATHER & EARTH SCIENCE RESOURCES
OTHER ACADEMIC COURSES, STUDENT RESEARCH, OTHER STUFF