_Budytes_, CUVIER, R. A. 1817. (Type, _Motacilla flava_, LINN.)
[Line drawing: _Budytes flava._
45912]
The recent discovery of a species of yellow-bellied Wagtail in Norton
Sound, by the naturalists of the Russian Telegraph Expedition, adds
another member of an Old World family to the list of American birds.
Much confusion exists as to the precise number of species in the
genus, some grouping together as varieties what others consider as
distinct species. There is an unusual degree of variation with age,
sex, and season, and this, combined with strongly marked geographical
peculiarities, renders the proper solution of the problem impossible
to any but those having access to large series.
Budytes flava, LINN.