ornithologist

n. expert in the field of ornithology, one who studies 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. a zoologist who studies birds
(synonym) bird watcher
(hypernym) zoologist, animal scientist
(hyponym) Audubon, John James Audubon

(n.)
One skilled in ornithology; a student of ornithology; one who describes birds.
  

n.
علم پرند کا عالم يا جاننے والا, عالم طيوريات, طيوريات دان