Buist, R., on the proportion of the sexes in salmon; on the pugnacity of the male salmon.
Bulbul, pugnacity of the male; display of under tail-coverts by the male.
Bull, mode of fighting of the; curled frontal hair of the.
Buller, Dr., on the Huia; the attachment of birds.
Bullfinch, sexual differences in the; piping; female, singing of the; courtship of the; widowed, finding a new mate; attacking a reed-bunting; nestling, sex ascertained by pulling out breast feathers.
Bullfinches, distinguishing persons; rivalry of female.
Bulls, two young, attacking an old one; wild, battles of.
Bull-trout, male, colouring of, during the breeding season.
Bunting, reed, head feathers of the male; attacked by a bullfinch.
Buntings, characters of young.