Adult male: It has a uniformly black crown and ... There are 9 subspecies of the white-breasted nuthatch in Mexico and North America, 5 of which occur north of the U.S.-Mexico border.

The presence of this nuthatch is typically announced ... darker crown and eye line. Adult male: bold face pattern: Inky black crown and nape; prominent white supercilium extending from sides ...

Sudan, a northern white rhino and the last male of his subspecies, died Monday at the Ol Pejeta Conservancy in Kenya. The rhino — once called by the dating app Tinder as the “most eligible bac ...