Reliability of Determining Adults from Juvenile Ducks by Presence or Absence of Notched Tail Feathers in Various Species of North American Ducks
Author :
Frank Rohwer استاد راهنما , Andy Nyman استاد مشاور , Robert Cox استاد مشاور
University :
Lovisiana State University
Grade :
نامعلوم
Major :
Master of Science )M.S.( )Renewable Natural Resources(
Number of pages :
0
Publish Date :
2005
Keyword :
Aythya affinis , lesser scaup , Anas strepera , gadwall , redhead , Anas americana , tail molt , age determination , mallard , Anas platyrhynchos , northern pintail , Anas acuta , morphometric measures
