. A history of British birds . descending edge, and being divided by it, a portion is sentin circles round the inner surface of the cavity before itbecomes united with the air from the other lobe in the tubecommon to both. A compound tone of voice is thus pro-duced by which wild-fowlers can distinguish males fromfemales of the same species, in the darkest night, wheneverthe birds utter their note, as they frequently do, apparentlyfor the purpose of keeping together. Gilbert White ofSelborne, with his usual discrimination, says, in his forty-third letter to Daines Barrington, which is devoted t
. A history of British birds . descending edge, and being divided by it, a portion is sentin circles round the inner surface of the cavity before itbecomes united with the air from the other lobe in the tubecommon to both. A compound tone of voice is thus pro-duced by which wild-fowlers can distinguish males fromfemales of the same species, in the darkest night, wheneverthe birds utter their note, as they frequently do, apparentlyfor the purpose of keeping together. Gilbert White ofSelborne, with his usual discrimination, says, in his forty-third letter to Daines Barrington, which is devoted to theconsideration of the notes and language of birds :— amono-Ducks the sexual distinction of voice is remarkable ; for,while the quack of the female is loud and sonorous, thevoice of the Drake is inward, harsh, feeble, and scarce dis-cernible. The resemblance in the vignette below to the reed or othermouth-piece, and the edge opposed to its inner orifice toproduce vibration in some musical wind instruments, willbe VOL. IV. 3 B 370 ANSERES. ANATID^.
Size: 1955px × 1279px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorsaun, bookcentury1800, bookdecade1870, booksubjectbirds
