a group of birds sitting on top of a tree branch

Title: Townsend's warbler. Arctic blue-bird. Western blue-bird : Sylvia townsendi, Nuttall. 1. Male. Sialia Arctica, Swain. 2. Male. 3. Female. Plant, Carolina allspice. Calycanthus floridus. Sialia occidentalis. Townsend. 4, Male. 5, Female. c.1 v.4 plate 393 Artist: Audubon, John James, 1785-1851 Engraver: Havell, Robert, 1793-1878 Name on Item: Drawn from nature by J. J. Audubon F.R.S. F.L.S. Engraved, printed & coloured by R. Havell, 1837. Date: 1837 https://www.digitalcommonwealth.org/search/commonwealth:9s16d816f