Food Habits of the Great-Tailed Grackle in Brazos County, Texas

Do the more flexible individuals rely more on causal cognition? Observation versus intervention in causal inference in great-tailed grackles

“…Even if grackles do attend to events in the touchscreen operant tasks, these events might be incompatible with their feeding behavior system. It is possible that because grackles feed more interactively with food items (Davis and Arnold 1972), the touchscreen might be inappropriate for testing causal processes associated with obtaining food. Grackles are generalist omnivores that forage on a wide variety of food types, including insects, grubs, lizards, nestlings, eggs, shellfish, fruits, and seeds.…”

CLARINERO COLIGRANDE Quiscalus mexicanus (ICTERIDAE): NOTAS SOBRE SU DIETA

“…Su éxito como comensal humano lo ha transformado, incluso, en plaga agrícola (Johnson & Peer, 2021). Es una especie preferentemente insectívora (Davis & Arnold, 1972), aunque dentro de sus ítems alimenticios también incluye reptiles (Haemig, 2011: Cupul-Magaña et al, 2018, anfibios (Skutch, 1954;Vega-Trejo et al, 2014), aves (Hansen, 1976), moluscos (Cupul-Magaña & Mc Cann, 2016), artrópodos (Davis & Arnold, 1972;Gurrola-Hidalgo et al, 2009;Frank & Morón, 2012), mamíferos (Dean et al, 2006), granos, frutos (Del Villar-González, 2000Frank & Morón, 2012) y hasta sus propios huevos (Cupul-Magaña et al, 2018).…”

NOTE OF THE ATTEMPTED PREADATION OF AN ADULT DEER MOUSE (Peromyscus maniculatus) BY A GREAT-TAILED GRACKLE (Quiscalus mexicanus)

“…The great-tailed grackle is reported to eat grain, insects, small fish, lizards, snails, tadpoles, and plant materials. Some eggs and bird nestlings (Davis and Arnold, 1972;Johnson and Peer, 2001). This is the first known observation of an attempted predation by a great-tailed grackle on a living mammal.…”