Natural History of the Racer Coluber constrictorFitch, Henry S. (Henry Sheldon)
Science
Natural History of the Racer Coluber constrictor
Fitch, Henry S. (Henry Sheldon)
Racer snake
Several authors have published specific information regarding the food
of _C. c. flaviventris_. Hurter (1911:171) caught a blue racer in the
act of swallowing a copperhead (_Agkistrodon contortrix_). Taylor
(1892:331) recorded finding garter snakes in several large racers.
Pope and Dickinson (1928:53) recorded instances of blue racers feeding
on racerunners (_Cnemidophorus sexlineatus_). Ortenburger (1928:181)
examined 22 stomachs and recorded: 1 large garter snake (_Thamnophis
sirtalis_), 1 vole (_Microtus pennsylvanicus_), 1 frog (_Rana_ sp.),
31 crickets (_Gryllus assimilis_), 4 decticines, 2 acridids,
grasshoppers (1 _Hippiscus_, 2 _Melanoplus_ sp., 1 _M. confusus_, 1
_M. differentialis_, 1 _Dissosteira carolina_, 1 _Sphargemon collare_,
1 _Trimerotropus_ sp., 1 _Orphulella_ sp., 1 _Chloealtis conspersa_, 1
_Chortophaga viridifasciata_, 1 _Omaseus_ sp., 1 _Pedocetes_ sp.), and
2 caterpillars (1 noctuid, 1 sphingid). Gloyd (1928:123) recorded a
hatchling glass lizard (_Ophisaurus attenuatus_) in the stomach of a
juvenal racer. Force (1930:31) found a racer eating eggs from the nest
of a cardinal (_Richmondena cardinalis_) and another racer eating eggs
of a red-wing (_Agelaius phoeniceus_). Gloyd (1932:403) recorded an
observation of a racer overpowering and swallowing a copperhead.
Anderson (1942:210) recorded remains of crickets and grasshoppers in
feces. Hudson (1942:55) recorded a racerunner (_Cnemidophorus
sexlineatus_) in the stomach of a juvenile and recorded an earless
lizard (_Holbrookia maculata_) 3 lizard eggs, and 14 grasshoppers
(_Melanoplus differentialis_ and others) in the stomach of another.
Marr (1944:484) found a harvest mouse (_Reithrodontomys montanus_) in
one. Breckenridge (1944:118) recorded stomach contents including a
garter snake (_Thamnophis sirtalis_), a frog (_Rana pipiens_), 3
crickets and 2 moths. Mossimann and Rabb (1952:27) recorded that a
racer disgorged several grasshoppers. Fouquette and Lindsay
(1955:411) recorded that a blue racer had eaten a harvest mouse
(_Reithrodontomys_ sp.). Carpenter (1958:114) recorded that one blue
racer had eaten a green snake (_Opheodrys aestivus_) and another had
eaten a grasshopper and a camel cricket.
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