[1]_Scott, Virgil E. Characteristics of ponderosa pine snags used by
cavity-nesting birds. U.S. Fish and Wildlife Service, Fort Collins,
Colorado._
[2]_Scott, Virgil E._ [_In prep._] _Bird response to snag removal. U.S.
Fish and Wildlife Service, Fort Collins, Colorado._
[3]Snag or tree use: A: food B: nest C: perch.
[4]Major foods: 1: birds 2: rodents 3: reptiles and amphibians 4:
insects 5: seeds and fleshy fruits 6: vegetation 7: other or little
known.
[5]Threatened or endangered species.
[6]_Wildlife biologist, U.S. Fish and Wildlife Service, Fort Collins,
Colorado._
[7]_Ecology Department, Colorado State University, Fort Collins,
Colorado._
[8]_Zoology Department. Colorado State University, Fort Collins._
[9]_DeWeese, Lawrence R., Charles J. Henny, Randy L. Floyd, Kathie A.
Bobal, and Albert W. Shultz. U.S. Fish and Wildlife Service. Impact
of Trichlorfon (Dylox) and Carbaryl (Sevin-4-oil) on breeding birds
in southwestern Montana forests._
★ U.S. GOVERNMENT PRINTING OFFICE: 1977 O-246-764