- Aldrich, J.W.;Robbins, C.S.;Dykstra, W.W., 1961, Bird hazard to aircraft: U.S. Fish and Wildlife Service Wildlife Leaflet 429, 10,
- Anonymous, 1961, Patuxent Wildlife Research Center: U.S. Fish and Wildlife Service Circular No. 107, 23,
- Applegate, Vernon C., 1961, Downstream movement of lampreys and fish in the Carp Lake River, Michigan: U.S. Fish and Wildlife Service Special Scientific Report- Fisheries 387, 71 p.,
- Atwood, E.L.;Wells, C.F., 1961, Waterfowl harvest in the United States during the 1960-61 hunting season: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 55, 20,
- Atwood, E.L.;Wells, C.F., 1961, Waterfowl harvest in the Mississippi Flyway States during the 1960-61 hunting season: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 56, 49,
- Ball, O. P.; Cope, Oliver B., 1961, Mortality studies on cutthroat trout in Yellowstone Lake: U.S. Fish and Wildlife Service Research Report 55, 62 p.,
- Benson, Norman Gustaf, 1961, Limnology of Yellowstone Lake in relation to the cutthroat trout: U.S. Fish and Wildlife Service Research Report 56, iv, 33 p. maps (part fold.) diagrs., tables. 26 cm,
- Bulkley, Ross V., 1961, Fluctuations in age composition and growth rate of cutthroat trout in Yellowstone Lake: U.S. Fish and Wildlife Service Research Report 54, 31 p.,
- Crissey, W.F., 1961, Waterfowl status report, 1961: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 61, 122,
- Geis, A.D.;Carney, S.M., 1961, Results of duck-wing collection in the Mississippi Flyway, 1959-60: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 54, 120,
- Herman, C.M.;Locke, L.N., 1961, Trichomoniasis, a disease of mourning doves: U.S. Fish and Wildlife Service Wildlife Leaflet 331 (revised), 4,
- Kaczynski, C.F.;Geis, A.D., 1961, Wood duck banding progress report, 1959 and 1960: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 59, 41,
- Kiel, W.H., 1961, Mourning dove status report-1961: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 57, 34,
- Lennon, R. E., 1961, The trout fishery in Shenandoah National Park: U.S. Fish and Wildlife Service Special Scientific Report 395, 16,
- Martin, F.W., 1961, Woodcock status report - 1961: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 58, 29,
- Scheffer, Victor B., 1961, Pelage and surface topography of the northern fur seal: U.S. Fish and Wildlife Service North American Fauna 64, v, 206 p. illus., plates, diagrs., tables 23 cm.,
- Shell, E. W., 1961, Chemical composition of blood of smallmouth bass: U.S. Fish and Wildlife Service Research Report 57, 36 p.,
- Smith, R.I.;Geis, A.D., 1961, Prehunting season banding of mallards and black ducks: Progress report, 1959 and 1960: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 60, 29,
- Wolf, Robert S., 1961, Age composition of the Pacific sardine 1932-1960: U.S. Fish and Wildlife Service Research Report 53, iv, 36 p. diagrs., tables. 24 cm,
