This section is from the book "The Bird Book", by Chester A. Reed. Also available from Amazon: The Bird Book.
Range. - North America, west of the Plains and from British Columbia southward, wintering in Mexico.
This handsome species is as abundant in the west as the Baltimore Oriole is in the east, and breeds throughout its United States range. Their nests are similarly made and in similar locations, and the eggs are hardly distinguishable from those of the preceding, but the ground color is generally of a pale bluish white tint and the markings are usually finer, the lines running around the eggs and often making a very handsome wreath about the large end. Size of eggs, .94 x .62.

Bluish white.
 
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