This is the site of the Hubbard Brook Research Foundation – the U.S.’s longest continuous research programs of avian biology – which provides teachers with science education materials that promote scientific inquiry.
http://hubbardbrookfoundation.org/birdlessons/
This site, sponsored by Access Internet – the National Health Museum Activities Exchange, presents a classroom project designed for students in a botany/zoology class as part of a unit on birds.
http://www.accessexcellence.org/AE/ATG/data/released/0346-CarolynNevin/index.php
This resource, sponsored by Migration Science and Mystery: A Distance Learning Adventure, provides five classroom lessons on the topic of migration.
http://migration.pwnet.org/stopovers/santa_maria_lessons.php
This site, Project Beak, provides comprehensive information on the subject of birds, including the topic of avian respiration.
http://projectbeak.org/