...Thecolor varies widely; it is never black or bluish, as some say, and itbecomes often light brown or yellow... 
W.E.B. Du Bois 「The Negro」
...They layfrom three to eight bluish white eggs withthe usual chalky and discolored appearance...
Chester A. Reed 「The Bird Book」
...Theground color is a pale bluish or greenish whiteand the markings are various shades of brownand black...
Chester A. Reed 「The Bird Book」
...Chalky bluish white, nest stained...
Chester A. Reed 「The Bird Book」
...Chalky bluish white...
Chester A. Reed 「The Bird Book」
...This species may always be recognized by the entirely white head and neck,the body being grayish or bluish gray...
Chester A. Reed 「The Bird Book」
...Pale bluish green...
Chester A. Reed 「The Bird Book」
...Their eggs are bluish white, unmarked or faintly spotted with pale brown...
Chester A. Reed 「The Bird Book」
...Theylay from three to five eggs of adull bluish green color, spottedwith umber and lilac gray...
Chester A. Reed 「The Bird Book」
...Bright bluish green...
Chester A. Reed 「The Bird Book」
...During April or May they layfrom three to five eggs of a bluish white color speckedand spotted with brown...
Chester A. Reed 「The Bird Book」
...They lay fromfour to six bluish white eggs, spotted andblotched with brown and lavender...
Chester A. Reed 「The Bird Book」
...The eggs numberfrom three to six and are pale bluish, sparinglyspecked with reddish brown...
Chester A. Reed 「The Bird Book」
...Two broods are raiseda season and from May to August setsof four or five plain bluish white eggs may be found...
Chester A. Reed 「The Bird Book」
...The eggsare pale bluish white, three or four in number, and laid duringMay or June...
Chester A. Reed 「The Bird Book」
...Theireggs are light bluish green,speckled and spotted withreddish brown, and notdistinguishable with certaintyfrom those of theScarlet Tanager...
Chester A. Reed 「The Bird Book」
...The eggs are grayish white witha bluish tinge, thickly speckled with blackish; size ...
Chester A. Reed 「The Bird Book」
...Their eggs are laid in the latter part of Mayor during June, and are from three to five innumber and a bright bluish green in color,unmarked...
Chester A. Reed 「The Bird Book」
...These graceful birds are bluish gray above with a black forehead and centraltail feathers, and white underparts...
Chester A. Reed 「The Bird Book」
...The colour is a pale bluish above, and white underneath,with numerous streaks, as in Risso's grampus...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...The upper part of thehead and neck are bluish black, the throat, fore-neck,breast, and abdomen being a pure dazzlingmetallic white, a sharp line separating the whitefrom the black areas...
George Murray Levick 「Antarctic Penguins」
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