14 



Feeding: Fitch 1963; Bal linger et al. 1979. 



Breeding: Fitch 1963, 1970. 



Space use and temporal activity: Fitch 1963; Brown and Parker 1976; 



Baxter and Stone 1980; Sexton and Hunt 1980. 

 Effects of habitat modification and management: Fitch 1963; Parker 



and Brown 1973; Brisbin et al. 1974; Peterson 1974; Fleet and 



Plapp 1978; Hall 1980. 



Crotalus viridis Western Rattlesnake 



Taxonomy: Klauber 1972; Collins et al. 1978; Baxter and Stone 1980. 

 Distribution: Baxter 1947; Smith 1963c; Conant 1975; Bury et al. 



1978; Baxter and Stone 1980. 

 Economic and legal status: Klauber 1972; Bury et al. 1978. 

 Population characteristics: Baxter 1954; Wyoming Game and Fish Dept. 



1977; Sharp 1979; Baxter and Stone 1980. 

 Habitat utilization: Gloyd 1946; Anderson 1947; Hayward 1948; 



Woodbury 1951; Baxter 1954; Stebbins 1954, 1966; Wright and 



Wright 1957; Hayward 1958; Klauber 1972; Parker and Brown 1973; 



Peterson 1974; Diller 1981; Hammerson and Langlois 1981; Diller 



and Johnson 1982. 

 Feeding: Hamilton 1950; Baxter 1954; Wright and Wright 1957; Klauber 



1973; Baxter and Stone 1980; Diller 1981; Diller and Johnson 



1982. 

 Breeding: Wood 1933; Rahn 1942; Glissmeyer 1951; Baxter 1954; Fitch 



1970; Klauber 1972; Baxter and Stone 1980; Diller 1981; Diller 



and Johnson 1982. 

 Space use and temporal activity: Klauber 1972; U.S. Dept. of the 



Interior 1979; Baxter and Stone 1980; Jacob and Painter 1980; 



Campbell and Clark 1981; Diller 1981; Diller and Johnson 1982. 

 Effects of habitat modification and management: Baxter 1954; Chace 



1971; Klauber 1972; Parker and Brown 1974; Bauer! e et al. 1975; 



Sharp 1979; Baxter and Stone 1980; Hall 1980. 



Heterodon nasicus Plains Hognose Snake 



Taxonomy: Piatt 1969; Collins et al. 1978. 



Distribution: Baxter 1947; Conant 1975; Bury et al. 1978; Baxter and 



Stone 1980. 

 Economic and legal status: Bury et al. 1978. 

 Population characteristics: Wyoming Game and Fish Dept. 1977; Sharp 



1979; Baxter and Stone 1980. 

 Habitat utilization: Stebbins 1954; Wright and Wright 1957; Flatt 



1969; Sharp 1979; Baxter and Stone 1980; Hammerson and Langlois 



1981. 

 Feeding: Edgren 1955; Piatt 1969; Bal linger et al. 1979. 

 Breeding: Piatt 1969; Fitch 1970. 

 Space use and temporal activity: Piatt 1969. 

 Effects of habitat modification and management: Piatt 1969; Sharp 



1979; Hall 1980. 



