Predation of nesting Thick-billed Parrots Rhychopsitta pachyrhyncha by bobcats in northwestern Mexico
2021
SHEPPARD, JAMES KENDAL | ROJAS, JOSÉ IGNACIO GONZÁLEZ | CRUZ, JAVIER | GONZÁLEZ, LUZ FRANCELIA TORRES | NIETO, MIGUEL ÁNGEL CRUZ | LEZAMA, SERGIO DAVID JIMÉNEZ | JUAREZ, EDWIN ALFREDO | Lamberski, Nadine
We report on what appear to be increasing predation events on nesting Thick-billed Parrots Rhychopsitta pachyrhyncha. Thick-billed Parrots are classified as ‘Endangered’ and their seasonal breeding range is restricted to increasingly fragmented and degraded high elevation mixed conifer forest habitat within the Sierra Madre Occidental region of north-western Mexico. Predation of established breeding pairs has recently contributed to the ongoing decline of Thick-billed Parrot populations by removing mature birds with high reproductive value, which has associated consequences for future recruitment. We observed increasing predation events on nesting Thick-billed Parrots by bobcats Lynx rufus accompanied by kittens throughout the 2018–2019 breeding seasons, and we speculate that recent reductions in bobcat habitat have pushed them into new ranges where they are supplementing their diet with nontraditional prey items.
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