Henry Rogers Durkee collected 74 egg sets of 27 avian species in 1870 at Gilmer, Uinta County, in southwestern Wyoming. Despite the paucity of documented breeding evidence from this region during the late 19th and early 20th centuries, his material at the Smithsonian Institution was generally overlooked and has never been critically examined. Durkee's egg sets included 5 species (Sandhill Crane, Grus candensis; Northern Rough-winged Swallow, Stelgidoteryx serripennis; Grasshopper Sparrow, Ammodramus savannarum; Fox Sparrow, Passerella iliaca; Cassin's Finch, Carpodacus cassinii) whose breeding distribution was then poorly known, 25 to more than 70 years before nests and eggs were otherwise documented in Wyoming. Durkee also collected complete egg sets of Lark Bunting (Calamospiza melanocorys) over 70 years before breeding was confirmed at other peripheral locations in Wyoming. In addition, Durkee's incomplete egg sets of Grasshopper Sparrow were the 1st western subspecies (A. s. perpallidus); his complete egg set and nest of the Fox Sparrow collected at Gilmer constituted the 2nd locality for the species or species group (P. i. schistacea). Although the number of egg sets Durkee collected is modest, he made a meaningful contribution to the early history of avifaunal exploration in Wyoming.
McNair, Douglas B. and Dean, James P.
"Distributional information on birds from egg sets collected by Henry Rogers Durkee in 1870 in southwestern Wyoming,"
Western North American Naturalist: Vol. 63
, Article 5.
Available at: https://scholarsarchive.byu.edu/wnan/vol63/iss3/5