My home town Raub is at 3º 47' north to equatorial with hot tropical climate, so summer is almost all year round.
This Juvenile Magpie Robin was found spreading its wings and tail feathers at 2.26pm hot 35ºc afternoon sun. It stay there for about 2 minutes oblivious of my camera.
Why bird sunbathing?. Ornithologist have their theories ;
1. Feather maintenance - helping dislodge feather parasites - eg. fleas, lice, ticks.
2. To reduces the amount of metabolic energy to maintain a constant body temperature of around 40ºC.
3. Ultra-violet in sunlight involve in vitamin D conversion.
4. or just a feels good factor.
Juvenile Magpie Robin sunbathing. The temperature was so hot that it seen here panting with open bill.
Location: My backyard, Raub, Pahang.
References:
1.
EcoBirds
2. Secret life of common bird.
link here