Frugivory in the red-shouldered hawk (Buteo lineatus elegans)

Published Article

California

Publication date: May 15, 2025

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Red‑shouldered hawks typically consume mammals in northern regions and amphibians or reptiles in the southern U.S., but new observations from Santa Barbara, California, reveal an unusual behavior: repeated consumption of avocado fruit from 2020–2024. This study documents these events, describes associated foraging behaviors and compares them with other rare cases of raptor frugivory. With this addition, 33 raptor species worldwide are now known to consume fruit. These findings broaden understanding of dietary flexibility in raptors and highlight the ecological complexity of urban and agricultural landscapes.

Subject Tags

  • Life Sciences
  • Wildlife

Abstract

Red-shouldered hawks (Buteo lineatus) in northern latitudes of their range in North America consume mostly mammals while in southern states they consume mostly amphibians and reptiles. Here we document occurrences of red-shouldered hawks consuming avocado (Persea americana) fruit in Santa Barbara, California, USA, between 2020–2024, the associated behavior of the hawks, and discuss consumption of avocado fruit by other raptors. This brings the number of raptor species documented undertaking frugivory to 33.

Citation

Fitzsimons, J. A., Masson, E., & Masson, M. (2025). Frugivory in the Red-shouldered Hawk (Buteo lineatus elegans). The Wilson Journal of Ornithology, 137(3), 496-500. https://doi.org/10.1080/15594491.2025.2499785

TNC Authors

  • James A. Fitzsimons
    Senior Advisor, Global Protection Strategies
    The Nature Conservancy
    Email: jfitzsimons@tnc.org