Dear colleagues,
Does anybody know about a key to distinguish different species of ducks through osteometry ? ... and could provide it to me by PDF :)
For example :
Woelfle, E. Vergleichend morphologische Untersuchungen an Einzelknochen des postkranialen Skeletts in Mitteleuropa vorkommender Enten, Halbgänse und Säger. Ludwig-Maximalians-Universität, München, 1967.
Thanks in advance
Thierry ARGANT
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