ornithology

n. branch of zoology dealing with the study and research of birds

Ornithology (from Greek: ορνισ, ornis, "bird"; and λόγος, logos, "knowledge") is the branch of zoology concerned with the study of birds. Several aspects of the study of ornithology differ from closely related disciplines, possibly due to the high visibility and the aesthetic appeal of birds. Most marked among these is the extent of field studies undertaken by amateur volunteers working within the parameters of strict scientific methodology.See also Timeline of ornithology
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Noun
1. the branch of zoology that studies birds
(hypernym) zoology, zoological science

(n.)
That branch of zoology which treats of the natural history of birds and their classification.
  

(n.)
A treatise or book on this science.
  

n.
علم پرند, پرند نامہ, تذکرات طيور, طيوريات, علم الطيور