skulling n.—Gloss: Wiktionary defines this as “the act of aging a young bird by measuring the degree of ossification of its skull.” «The age of the birds can be determined by examining the feathers (color and shape), eye...
skulling n.—Gloss: Wiktionary defines this as “the act of aging a young bird by measuring the degree of ossification of its skull.” «The age of the birds can be determined by examining the feathers (color and shape), eye...
