Northern harrier hawks (Circus cyaneus) are less aggressive at some times than they are at others toward territorial intruders that might steal food. This is most likely to happen when the territory owners

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Northern harrier hawks are less aggressive towards territorial intruders when they have just eaten because their immediate need for food is satisfied, reducing the necessity to defend their territory aggressively for resources.

Northern Harrier Hawks (Circus Cyaneus) Are Less Aggressive at Some