EXAMPLES FROM THE WEB FOR BIRD
A barrel may sound hollow, but not a bird--this wiseacre acquaints us.
This will permit the bird to be spread apart, as in Fig. 25.
Add the seasonings, mix thoroughly, and stuff into the bird.
On the right is a god who seems to be setting free a bird from his right hand.
The ornithopter has hinged planes which work like the wings of a bird.
And immediately the bird began to sing, and did not go away until it was told to do so.
It was probably merely the beating of the wings of a night bird.
Here A is the bird, and B the general outline of the machine.
So different—so full of life, like a bird, when you are alone in the woods?
They don't understand you, and they just get up and walk out or give you the bird!
Old English bird, rare collateral form of bridd, originally "young bird, nestling" (the usual Old English for "bird" being fugol), of uncertain origin with no cognates in any other Germanic language. The suggestion that it is related by umlaut to brood and breed is rejected by OED as "quite inadmissible." Metathesis of -r- and -i- was complete 15c.
Figurative sense of "secret source of information" is from 1540s. Bird dog (n.) attested from 1832, a gun dog used in hunting game birds; hence the verb (1941) meaning "to follow closely." Bird-watching attested from 1897. Bird's-eye view is from 1762. For the birds recorded from 1944, supposedly in allusion to birds eating from droppings of horses and cattle.