We observed well over a hundred Turkey Vultures gathered on power line towers just south of Lake Lewisville near state highway 121. It was early in the morning, and the birds appear to be waiting for the sun’s warmth to create the columns of rising warm air, called thermals, that they need to help them glide in search of food.

Here a portion of a group of well over a hundred Turkey Vultures that have gathered on power line towers just south of Lake Lewisville near state highway 121. It is early in the morning, and the birds appear to be waiting for the sun’s warmth to create the columns of rising warm air, called thermals, that they need to help them glide in search of food.
Here a portion of a group of well over a hundred Turkey Vultures that have gathered on power line towers just south of Lake Lewisville near state highway 121. It is early in the morning, and the birds appear to be waiting for the sun’s warmth to create the columns of rising warm air, called thermals, that they need to help them glide in search of food.
If you look carefully you can see Turkey Vultures on a number of these towers.
If you look carefully you can see Turkey Vultures on a number of these towers.
A group of Turkey Vultures such as this one is known as a Venue. In this picture a solitary Turkey Vulture joins the rest.
A group of Turkey Vultures such as this one is known as a Venue. In this picture a solitary Turkey Vulture joins the rest.
Another group of Turkey Vultures in the trees just to the east of the power line towers.
Another group of Turkey Vultures in the trees just to the east of the power line towers.

Observation Details

County–Denton
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City–Lewisville
Date–October 14, 2006
Time of Day–Morning
Temperature–Cool (50-69°F/10-21°C)
Weather–Partly Cloudy
Habitat–Undeveloped-Semi-Wooded
Type of Behavior–Congregating
Gender–Mixed
Maturity–Adult
Observer–Chris Jackson