English Bird migration Cited by user Shyamal on 09 Jun 2009 Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds.
English Ornithology Cited by user DOI bot on 11 Jun 2008 Ornithology is a branch of zoology that concerns the study of birds. Etymologically, the word "ornithology" derives from the ancient Greek ὄρνις ornis ("bird") and λόγος…