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Closeup of blue and white songbird,Tree Swallow (Tachycineta bicolor) perching on a leafy branch. Taken during spring migration in Long Point,Ontario
Tree swallow (Tachycineta bicolor) in flight, taken at Lac le Jeune, near Kamloops; British Columbia, Canada
. The birds of Illinois and Wisconsin. Birds; Birds. Jan., 1909. Birds of Illinois and Wisconsin—Cory. 223 Upper plumage, rich green, showing more or less purple on upper tail coverts; under parts, white; western species, only once taken in Illinois. Tachycineta thalassina lepida. Northern Violet-green Swallow. See No. 286.. Tree Swallow. Entire under parts, white; upper plumage, metallic steel blue; young birds have the upper plumage brownish gray, but the under plumage is pure white. Iridoprocne bicolor. Tree Swallow. White-bellied Swallow. See No. 285.. Please note that these images are ext