Predation on the Black-Throated Sparrow Amphispiza Bilineata
Herpetology Notes, volume 13: 401-403 (2020) (published online on 26 May 2020) Predation on the black-throated sparrow Amphispiza bilineata (Cassin, 1850) and scavenging behaviour on the western banded gecko Coleonyx variegatus (Baird, 1858) by the glossy snake Arizona elegans Kennicott, 1859 Miguel A. Martínez1 and Manuel de Luna1,* The glossy snake Arizona elegans Kennicott, 1859 is Robles et al., 1999a), no specific species have been a nocturnal North American colubrid found from central identified as a prey item until this paper, in which we California to southwestern Nebraska in the United States present evidence of predation on the black-throated and south through Baja California, Aguascalientes, San sparrow Amphispiza bilineata (Cassin, 1850). Luis Potosí and Sinaloa in Mexico (Dixon and Fleet, On 20 September 2017, at around 23:00 h, an 1976). Several species have been identified as prey adult specimen of Arizona elegans was found in the items of this snake (Rodríguez-Robles et al., 1999a) municipality of Hipólito (25.7780 N, -101.4017 W, including the mole Scalopus aquaticus (Linnaeus, 1758) 1195 m a.s.l.), state of Coahuila, Mexico. The snake (Eulipotyphla: Talpidae), the rodents Peromyscus sp. had caught and was in the process of killing and then (Rodentia: Cricetidae), Chaetodipus formosus (Merriam, consuming a small bird (Fig. 1); this act lasted close to 1889), Dipodomys merriami Mearns, 1890, Dipodomys 30 minutes. After completely swallowing its prey, the ordii Woodhouse, 1853, Dipodomys sp., Perognathus snake crawled away to a safe spot under a group of inornatus Merriam, 1889, Perognathus (sensu lato) sp. nearby dead Agave lechuguilla plants.
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