https://animaldiversity.org/accounts/Aythya_ferina/classification/
Aythya ferina (common pochard) | CLASSIFICATION | Animal Diversity Web
aythya ferinacommon pochardanimal diversityclassificationweb
https://www.usgs.gov/publications/tests-senescent-decline-annual-survival-probabilities-common-pochards-aythya-ferina
Tests for senescent decline in annual survival probabilities of common pochards, Aythya ferina |...
Senescent decline in survival probabilities of animals is a topic about which much has been written but little is known. Here, we present formal tests of...