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Name: Sharon
Status: student
Age: 9-12
Location: MI
Country: N/A
Date: 6/29/2005
Question:
Why would a pair of mute swans swim in circles, first one way then reverse the direction then in opposite directions. They have been doing this for 5 minutes at a time.

Replies:
You might be seeing a territorial display: "rotation display, neighboring males repeatedly and synchronously rotate 360 degrees on shared border" - The Birder's Handbook, Ehrlich, Dobkin & Wheye

J. Elliott

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