16 de septiembre de 2018

Tanager Wasp Eating Behavior

A group of Travis Audubon Bird watchers observed a male Summer Tanager 25 feet up in a tree feed on the larval combs of a wasp nest hanging from a small branch of a tree. It was perched below the wasp nest and was able to extend its neck high enough for its bill to crack open the larval cases. We watched it for about 15 minutes fill up on the larvae at which time it decided to fly away.

Ingresado el 16 de septiembre de 2018 por sawwhet sawwhet | 1 observación | 0 comentarios | Deja un comentario

13 de agosto de 2018

Avian Competition for Fish Carrion

At 9 AM August 12, 2018 at Bob Wentz Windy Point Park, Vincent O'Brien and I watched a Great-blue Heron (GBHE), Common Raven (CORA) and Turkey Vulture (TUVU), compete over a dead fish. Upon first arriving we saw 2 TUVU's and a GBHE vying for a large dead fish on the shoreline of Lake Travis. Soon this group was joined by a CORA.
It appeared the Great-blue Heron was lowest on the totem pole, however, we did see the heron take a couple of bites of carrion during 20 minutes observation. We saw quite a bit of sparring between the CORA and TUVU. Because there were 2 TUVU's at that time they appeared to hold their ground and remain closest to dead fish. The closer TUVU was observed eating the carrion but most of the time little feeding was actually observed among the 3 different species.

Ingresado el 13 de agosto de 2018 por sawwhet sawwhet | 1 observación | 1 comentario | Deja un comentario

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