Red-shouldered Hawk calling and maintaining it's territory

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Yesterday I stopped in Resaca de la Palma State Park in the Brownsville,TX area. As I drove into the entrance I heard a hawk calling repeatedly and saw this Red-shouldered Hawk take off from it's perch on a nearby utility pole. It called as it flew, circled several times then flew directly at a Cooper's Hawk perched on another utility pole and causing it to fly away. Clearly this Red-shouldered enforces it's primacy in the territory here. SeEtta

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