Coyotes (Canis latrans) and red fox (Vulpes vulpes) are both generalist predators presently found in the Northeastern United States. This study aimed to identify major prey items of both species in suburban New York, investigate consumption of anthropogenic resources, and examine seasonal changes in diet. Scat samples were collected from 2017 to 2018 for coyotes, and from 2011 to 2012 for red fox. Hairs, feathers, bone fragments and other scat components were classified by comparison with reference collections. Logistic regression was used to determine whether season or location predicted the presence of various food items. The most common food items for coyotes were white-tailed deer (Odocoileus virginianus), found in 54.2% of samples, and cricetid rodents, found in 16.9% of samples. For red fox the most common food items were birds, found in 39% of samples, and cricetid rodents, found in 37.8% of samples. Anthropogenic waste appeared in 11.9% of coyote scat samples and made up 1.3% of the total weight of items recovered from samples. No anthropogenic items were found in red fox scat, nor were remains from threatened piping plovers (Charadrius melodus), known to breed in the study area. Seasonal changes in diet were not detected for either species. Overall our results show that coyotes and red fox in suburban areas of Southern New York are persisting primarily on natural prey items, and not being subsidized by anthropogenic food sources.

土狼（Canis latrans）和赤狐（Vulpes vulpes）都是目前在美国东北部发现的多面兽。这项研究旨在确定纽约郊区这两个物种的主要猎物，调查人为资源的消耗，并检查饮食的季节性变化。从2017年至2018年收集了土狼的粪便样本，从2011年至2012年收集了赤狐的粪便样本。头发，羽毛，骨头碎片和其他粪便成分通过与参考馆藏进行比较进行分类。使用Logistic回归确定季节或地点是否预测了各种食品的存在。土狼最常见的食物是白尾鹿（Odocoileus virginianus），在54.2％的样本中发现，而Cricetid啮齿动物，在16.9％的样本中发现。对于狐狸来说，最常见的食物是在39％的样本中发现了鸟类，在37.8％的样本中发现了蠕齿类啮齿动物。人为浪费占土狼粪便样本的11.9％，占从样本中回收的物品总重量的1.3％。在红狐狸的粪便中没有发现任何人为的东西，也没有发现濒临灭绝的管道pl（Charadrius melodus）的残留物，该over在研究区域繁殖。两种物种均未检测到饮食的季节性变化。总的来说，我们的结果表明，纽约南部郊区的土狼和赤狐主要以天然猎物为食，而不受人为食物来源的补贴。