Aggressive encounter of a group of blue jays (Cyanocitta cristata) toward a group of scissor-tailed flycatchers (Tyrannus forficatus)

Troy A. Ladine

doi:10.1894/EKL-07.1

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Troy A. Ladine^1,*

¹Department of Biology, East Texas Baptist University, Marshall, TX 75670

^*Correspondent: tladine@etbu.edu

Abstract

I describe an occurrence of interference competition between a group of five male scissor-tailed flycatchers (Tyrannus forficatus) and 11 blue jays (Cyanocitta cristata). The interaction was initiated by a subset of two blue jays and concluded after nine additional blue jays arrived at a perch on a sweet gum (Liquidambar styraciflua), causing the scissor-tailed flycatchers to leave the perch and area. Both species exhibited intraspecific cooperation during the encounter.

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Troy A. Ladine "Aggressive encounter of a group of blue jays (Cyanocitta cristata) toward a group of scissor-tailed flycatchers (Tyrannus forficatus)," The Southwestern Naturalist 59(3), 407-409, (1 September 2014). https://doi.org/10.1894/EKL-07.1

Received: 26 December 2013; Accepted: 1 May 2014; Published: 1 September 2014

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