Pay in 4 interest-free payments of $10.50 Learn more
Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
Georgi Dimitrov| | 235PAGES
life and leadership
music and speech
- Flying saucers
Merriam Press
The North American Whistling-Ducks, Pochards, and Stifftails Paul Johnsgard:Paperback Georgi Dimitrov| | 235PAGESThe 12 species described in this volume are not closely related, but they provide an instructive example of adaptive evolutionary radiation within the much larger waterfowl lineage as to their divergent morphologies, life histories, and social behaviors. The whistling ducks (Dendrocygna), with three known North American species, are notable for their permanent pair bonds, extended biparental family care, and strong social cohesion. In contrast, males
