This important study challenges conventional life-history theory by demonstrating that reproductive-survival trade-offs are minimal in birds, except when reproductive effort is experimentally ...
Find out where and when this bird was seen. Subscribers can access more detailed information, including site specifics, a map and finder's comments. If you have a photo of this bird and would like it ...
Find out where and when this bird was seen. Subscribers can access more detailed information, including site specifics, a map and finder's comments. If you have a photo of this bird and would like it ...
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