Page:The Zoologist, 4th series, vol 6 (1902).djvu/521

Rh ''and flanks drab, margined with paler, the flanks gradually becoming a rich seal-brown, broadly margined with white. The middle of the under parts are very pale whitish drab, gradually becoming white on abdomen and under tail-coverts. On the middle of the breast there is a black feather, with several others showing the dark pigment being thrown into them, while at the roots of most of the feathers on the sternum a dark colouring matter is making its appearance.''

''This is very important indeed, as it indicates that during the breeding season the under parts may become black, a character quite unknown in the Bean-Goose. The upper wing-coverts are a dark bluish slate, gradually becoming rich hair-brown, broadly margined with dull white on the medians and first coverts. Primaries dark seal-brown, the rib white. Secondaries almost black, margined and fringed with dull white. Tertiaries rich seal-brown, very broadly margined with dull white; giving a very conspicuous appearance to the upper parts of the bird. Alulæ rather pale bluish slate. Axillars and under wing-coverts dark slate. At the bend of the''