It was a hot afternoon and this Javan Myna (Acridotheres javanicus) was lying on the grass in my garden soaking in the sun. Its bill was gaping (above). It then vigorously preened its feathers and scratched its head (below). Sunning its feathers, vigorous preening and scratching are to maintain its feathers in top form.
It also gaped widely and breathed fast to increase airflow to its lungs as a means of cooling its body. It also fluffed its feathers so that hot air close to its skin can escape (below).
The video below shows the myna soaking in the sun.
An earlier post can be seen HERE.
18th June 2018
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