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The eastern indigo snake is [[carnivorous]], like all snakes, and will eat any other small [[animal]] it can overpower. It has been known to kill some of its prey by pressing the prey against nearby burrow walls.[{{Cite web |date=2016-04-25 |title=Eastern indigo snake |url=https://nationalzoo.si.edu/animals/eastern-indigo-snake |access-date=2022-04-26 |website=Smithsonian's National Zoo |language=en}}] Captive specimens are frequently fed dead items to prevent injury to the snake from this violent method of subduing its prey. Chemosensory studies with mice (''[[House mouse|Mus musculus]]'') have shown that ''D. couperi'' responds with significantly elevated rates of tongue |
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The eastern indigo snake is [[carnivorous]], like all snakes, and will eat any other small [[animal]] it can overpower. It has been known to kill some of its prey by pressing the prey against nearby burrow walls.[{{Cite web |date=2016-04-25 |title=Eastern indigo snake |url=https://nationalzoo.si.edu/animals/eastern-indigo-snake |access-date=2022-04-26 |website=Smithsonian's National Zoo |language=en}}] They will stick their heads into stump holes or burrows, patrolling fringes of wetlands, or potentially climbing after prey.[[https://bioone.org/journals/southeastern-naturalist/volume-9/issue-1/058.009.0101/Prey-Records-for-the-Eastern-Indigo-Snake-Drymarchon-couperi/10.1656/058.009.0101.short]] Captive specimens are frequently fed dead items to prevent injury to the snake from this violent method of subduing its prey. Chemosensory studies with mice (''[[House mouse|Mus musculus]]'') have shown that ''D. couperi'' responds with significantly elevated rates of tongue |
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flicking and investigation towards visual cues of prey, and not volatile chemical cues.[{{cite journal|vauthors=Saviola AJ, Lamoreaux WE, Opferman R, [[species:David Chiszar|Chiszar D]]|year=2011|title=Chemosensory response of the threatened eastern indigo snake (''Drymarchon couperi'' ) to chemical and visual stimuli|journal=Herpetological Conservation and Biology|volume=6|issue=3|pages=449–454|url= http://herpconbio.org/Volume_6/Issue_3/Saviola_etal_2011.pdf}}] They are diurnal, terrestrial snakes that are regarded as wide-ranging, active foragers.[[https://bioone.org/journals/southeastern-naturalist/volume-9/issue-1/058.009.0101/Prey-Records-for-the-Eastern-Indigo-Snake-Drymarchon-couperi/10.1656/058.009.0101.short]] Its [[diet (nutrition)|diet]] has been known to include other snakes ([[ophiophagy]]), including venomous ones, as it is immune to the venom of the North American [[rattlesnake]]s. The eastern indigo snake also eats [[turtle]]s, [[lizard]]s, [[frog]]s, [[toad]]s, [[fish]], a variety of small [[bird]]s and [[mammal]]s, and eggs.[[[Roger Conant (herpetologist)|Conant, Roger]]; [[Joseph T. Collins|Collins, Joseph T.]] (1991). ''A Field Guide to Reptiles and Amphibians: Eastern and Central North America, Third Edition''. Peterson Field Guide Series No. 12. Boston: Houghton Mifflin Company.][{{cite journal | author = Landers J. Larry | author2 = Speake, Dan W. | year = 1980 | title = Management needs of sandhill reptiles in southern Georgia | journal = Proceedings, Annual Conference of Southeast Association Fish & Wildlife Agencies | volume = 34 | pages = 515–529 }}][{{cite web | url=https://animaldiversity.org/accounts/Drymarchon_couperi/ | title=''Drymarchon couperi'' (Eastern Indigo Snake) | website=[[Animal Diversity Web]] }}] |
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flicking and investigation towards visual cues of prey, and not volatile chemical cues.[{{cite journal|vauthors=Saviola AJ, Lamoreaux WE, Opferman R, [[species:David Chiszar|Chiszar D]]|year=2011|title=Chemosensory response of the threatened eastern indigo snake (''Drymarchon couperi'' ) to chemical and visual stimuli|journal=Herpetological Conservation and Biology|volume=6|issue=3|pages=449–454|url= http://herpconbio.org/Volume_6/Issue_3/Saviola_etal_2011.pdf}}] They are diurnal, terrestrial snakes that are regarded as wide-ranging, active foragers.[[https://bioone.org/journals/southeastern-naturalist/volume-9/issue-1/058.009.0101/Prey-Records-for-the-Eastern-Indigo-Snake-Drymarchon-couperi/10.1656/058.009.0101.short]] Its [[diet (nutrition)|diet]] has been known to include other snakes ([[ophiophagy]]), including venomous ones, as it is immune to the venom of the North American [[rattlesnake]]s. The eastern indigo snake also eats [[turtle]]s, [[lizard]]s, [[frog]]s, [[toad]]s, [[fish]], a variety of small [[bird]]s and [[mammal]]s, and eggs.[[[Roger Conant (herpetologist)|Conant, Roger]]; [[Joseph T. Collins|Collins, Joseph T.]] (1991). ''A Field Guide to Reptiles and Amphibians: Eastern and Central North America, Third Edition''. Peterson Field Guide Series No. 12. Boston: Houghton Mifflin Company.][{{cite journal | author = Landers J. Larry | author2 = Speake, Dan W. | year = 1980 | title = Management needs of sandhill reptiles in southern Georgia | journal = Proceedings, Annual Conference of Southeast Association Fish & Wildlife Agencies | volume = 34 | pages = 515–529 }}][{{cite web | url=https://animaldiversity.org/accounts/Drymarchon_couperi/ | title=''Drymarchon couperi'' (Eastern Indigo Snake) | website=[[Animal Diversity Web]] }}] |
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