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November 26, 2014

Mystery Mammal is the Magnificent Mink

The fast moving mammals seen scampering across the ice on November 22 were in fact American Mink (Mustela vison). Mink have a long, thin body and neck, short legs, and a 6-8 inch tail. Male mink are generally larger than females and may exceed two feet in length. Click 'More...' for further information. 

November 26, 2014

Common Redpolls Fighting for Position

In this clip we see one individual displace another on the feeder tray. Individuals will lunge at others with a closed bill, or make nipping attacks during physical antagonistic behavior. Communicative interactions include the following displays ordered in sequence from submission to high-intensity threat and represent apparent progression of increasing intensity in attack tendency: Submissive- Individual fluffs plumage and maintains posture similar to that adopted by sick, cold, or resting birds. Defensive Threat- Individual fluffs entire plumage, withdraws head, and opens bill while orienting toward the other bird. Head Forward Threat- Individual crouches slightly, sleeks plumage, and orients head and body toward the other bird. Head Forward Threat with Chin-Lifting- Individual’s posture as in Head Forward Threat and lifts head “in a quick perfunctory manner,” possibly to expose the black chin. Head Forward With Gaping- Posture similar to Head Forward Threat and plumage more sleeked; opens bill. Wing-Raised Horizontal Threat- Posture as in Head Forward Threat and plumage extremely sleeked and closed wings lifted away from body, sometimes raised over back. 

November 26, 2014

Kaluakane Has Chosen a Nest Site

But will Kaluahine agree with his choice? It is certainly not ideal for us as it is on the other side of the property from where they nested last season. However there are other albatrosses in view of the camera, we will just have to wait and see it they decide to nest, lay an egg and the egg is fertile. The Kauai Albatross Network (KAN) will keep us updated. Click 'More...' for further information. Thanks to Hob Osterlund/ KAN for the great photograph. 

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