plural of birth certificate

(of a fin etc) Having two rays

Any of the family Phorusrhacidae of extinct flightless birds endemic to South America during the Cenozoic; a phorusrhacid.

plural of bird's-eye view

A protocol, agreed between mother, midwives and doctors, listing options such as birth companion, position at birth, pain relief etc.

plural of bird table

(zoology) A shy, secretive, ground-dwelling passerine bird of the genus Atrichornis, found in Australia.

Any of the very large extinct flightless birds that make up the genera Aepyornis and Mullerornis within family Aepyornithidae, and lived in Madagascar until the 17th or 18th century; especially Aepyornis maximus.

A large peninsula that makes up the northwest portion of the Province of West Papua, Indonesia.

Alternative spelling of gaolbird