The territorial behavior of Pyrrhuloxia (Cardinalis sinuatus) in west-central Texas with observations of breeding biology
Wilke, Roger Russell, 1969-
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The purpose of this study was to examine and describe the natural history of Pyrrhuloxia during its reproductive season in West-central Texas with an emphasis on territoriality. In the territoriality investigation, I described territory establishment, boundary and size, maintenance, defense, stability, and breakdown. Observations in breeding behavior included courtship display, pair bonds, nest location, eggs and incubation, parental care, nestlings, fledglings, and reproductive success. I also investigated food, foraging, and flocking behavior.