. The birds of Illinois and Wisconsin. Birds; Birds. 536 Field Museum of Natural History — Zoology, Vol. IX. The Western Wood Pewee differs from M. virens in being darker and less olivaceous above, and having the wings and tail averaging longer. While generally recognized as distinct, the differences between this and the preceding species are very slight. Wing, to ; tail, to This species, if it occurs at all, can only be considered as an acci- dental straggler within our limits. It has apparently not been ob- served in Iowa or Illinois, although it is known to occur in west
. The birds of Illinois and Wisconsin. Birds; Birds. 536 Field Museum of Natural History — Zoology, Vol. IX. The Western Wood Pewee differs from M. virens in being darker and less olivaceous above, and having the wings and tail averaging longer. While generally recognized as distinct, the differences between this and the preceding species are very slight. Wing, to ; tail, to This species, if it occurs at all, can only be considered as an acci- dental straggler within our limits. It has apparently not been ob- served in Iowa or Illinois, although it is known to occur in western Nebraska and western Kansas. It is included by Kumlien and Hollister who state: "Several typical western wood pewees have been taken at Lake Koshkonong. One pair with nest and eggs were identified by Dr. Coues as unques- tionably of this species. Not reported by other observers at any point in the state and we can add nothing to the above bare facts.' (Birds of Wisconsin, 1903, p. 82.) Genus EMPIDONAX Cabanis. 212. Empidonax flaviventris Baird. Yellow-bellied Yellow-bellied Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Cory, Charles B. (Charles Barney), 1857-1921. Chicago
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