Pacific Black Duck….or Not?

Fantastic blog post by Geoffrey Cox (iNat user: https://www.inaturalist.org/people/cobaltducks) on identifying mallard x PBD traits and differentiating pure PBDs from mallards and hybrids:

https://epistemiccuriosity.blog/2022/03/06/pacific-black-duck-or-not/

Publicado el marzo 6, 2022 09:33 TARDE por jason_graham