. The bird book, illustrating in natural colors more than seven hundred North American birds, also several hundred photographs of their nests and eggs . Pale greenish blue 448 i. BLUEBIRD THE BIRD BOOK wwr 766. Bluebird. Sialia sialis sialis. Range.—Eastern United States, breeding from the Gulf to soutliern in tlie soutliern half of the United Stales. These familiar birds build in cavities in trees,usually below 20 feet from the ground, crev-ices among ledges, bird boxes and in any suit-able nook they may discover about buildings,providing that English Sparrows do not molest the
. The bird book, illustrating in natural colors more than seven hundred North American birds, also several hundred photographs of their nests and eggs . Pale greenish blue 448 i. BLUEBIRD THE BIRD BOOK wwr 766. Bluebird. Sialia sialis sialis. Range.—Eastern United States, breeding from the Gulf to soutliern in tlie soutliern half of the United Stales. These familiar birds build in cavities in trees,usually below 20 feet from the ground, crev-ices among ledges, bird boxes and in any suit-able nook they may discover about buildings,providing that English Sparrows do not molest them. They raise several broods a year, commencing in April when they lay from three to six pale bluish white eggs (rarely pure white); size .80 X .60, The cavities of their nesting sites are linedBluish white ^^^^ grasses and feathersusually, although I have found the eggs onthe unlined bottom of cavities in trees. 766a. Azure Bluebird. Sialia sialisfulva. Range.—This pale variety is found in south-ern Arizona and southward. Its nesting habits arc the same and the egg,5arc indistinguishable from the last.
Size: 1264px × 1978px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, bookyear1914
