In the severe winter, wild birds are still bustling.
Bird temperature generally ranges from 40 to 42 degrees Celsius, and is said to be several degrees higher than many mammal.
Most of the body is covered with heat-retaining feathers, but the legs and beaks exposed to the outside air are hidden into feathers, and occasional inflate feathers to form a layer of air to further enhance heat retention. Shows the gesture.
While constant-temperature animals consume a lot of energy and need food commensurate with it, birds with small bodies have a relatively high heat emission rate and need more nutrients, and the foraging is often seen.
In addition, he shows various humorous "guises" such as "fairing", "resting / sleep", "scratching", "single leg", "box seating", etc. Among them, "missing" is one of the real pleasures of bird watching.
The photo at the beginning is a swarm of the Chuo-ohashi Bridge pier "Sun pool".
<brown-eared bulbul> <Uricamome> <black-tailed gull>
