Normal grey cockatiels have grey bodies with yellow heads and orange cheek circles. Females typically have tail markings, males don't. Males have more striking orange spots on yellow faces. Females have lighter orange spots on muted yellow or grey faces
Joan became the undisputed female leader of a Rhode Island Red flock at 12 weeks. Joan's subordinates Peggy and Trudy eventually gave up challenging her. The rooster Don shows proper deference to Joan, even when she challenges others
Medium-sized eagle reaching 60 cm length and 150 cm wingspan. Pale brown head and wing coverts contrast with dark plumage. White patch on upper wings and distinct white "V" on rump. Juveniles have cream-colored neck patch and less wing contrast
Family Laniidae contains 34 species in two genera. Name derived from Latin "butcher" for impaling prey. Medium-sized birds with grey, brown, or black-and-white plumage. Most species between 16-25 cm, Corvinella up to 50 cm
Grouse are birds from Galliformes order, family Phasianidae. Range from 31 to 95 cm in length, weighing 0.3 to 6.5 kg. Males are larger than females, sometimes twice as heavy. Have elaborate ornamentation like crests and fan-tails
Blue jay (Cyanocitta cristata) is a passerine bird native to eastern North America. Measures 22-30 cm in length and weighs 70-100 g. Has distinctive blue crest that can be raised or lowered based on mood. Males and females are similar in size and plumage throughout the year