. The birds of Illinois and Wisconsin . Tree Swallow. Entire under parts, white; upper plumage, metalUc steel blue; young birds have the upper plumage brownish gray, but the underplumage is pure white. Iridoprocne hicolor. Tree Swallow. White-bellied Swallow. See No. Upper throat and sides of the head,chestnut brown; belly, whitish; forehead,whitish; crown and back, dark steel blue;upper tail coverts, pale rufous brown. Petrochelidon Swallow. See No. 283.
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Keywords: ., bo, bookcentury1900, bookdecade1900, bookidbirdsofillinoisw00cory