(5

Audubon III (cont.) Speculum

p. 250 Mergus cucullatus, ♂ speculum white in ♀ speculum greyish-white. Y ♂s after first moult still resemble ♀s, but have the speculum white; so gain this before other masculine similarities

258 Rallus Carolinus ♀ differs considerably from ♂. Y ♂ is intermediate after first moult between ♀ & ♂, but more like former. Intermediate

416 Egret Ardea rufescens. Egret perfectly white & Y of the species white, but adult of both sexes which are quite alike - & coloured purplish & greyish-blue Y. nearly 2 years old pure white

614 Harlequins Duck ♂ takes 3 years to acquire perfect plumage though may breed 2d year. The ♀ perfect in 2d year - So that there is no necessity for ♀ to take longer time to acquire perfect plumage}

IV. p 22 Anas obscura adult ♀ has speculum of same tints, as in ♂, but without the white terminal line.

p. 58 Ardea cærulea - Young white, when 1 year old mottled, (Birds in white, mottled by blue plumage may be seen breeding together.

[B89v]

Gould vol. 2 p. 363 Anas supercilosa sexes alike - fine speculum in both sexes

Specula

Young of both sexes distinguishable

507. [2 words illeg] ♀ destitute of bare skin on front of neck

p 566 – Apparently breeds in immature plumage

(6

Audubon IV

p 117 - Blue-winged Teal. A. discors Y like ♀ but paler & without the green speculum.

275 Green Heron Y vivid - (294 another sp. y. different)

392 Tanagra rubra ♂ pure scarlet ♀ yellowish green tinged with grey Y ♂ like young ♀ but distinguishable from ♀ by brighter tints Intermediate

466 Bombycilla garrula ♀ like M. - wax tips variable, sometimes wanting especially in young, some [iileg] them

Vol I. p. 229

B. [illeg] Y ♀ do not acquire tips so early as young ♂

470 Loxia leucoptera Y ♂ resembles ♀, after first moult still resembles; at next acquire red colour which becomes richer in older Birds

518 Evening Grosbeak - sexes considerably different young ♂ "bears considerable resemblance" to ♀. Intermediate?

564 Anser hyperboreus Y. begins to acquire whiteness after first year

599 a swallow with sexes considerably different in colour

611 Ibis falcinellus sexes alike - Y in 2d plumage very different from adults.