Серолобый зелёный голубь Treron affinis

Beautifully-colored pigeon of peninsular India’s lowland and hill forests. Male has a deep velvet-red back and gray-blue crown. Female has an olive-green back and a more restricted crown patch. Song is odd and un-pigeonlike: a long ascending note followed by high undulating squeaking and bubbling noises, somewhat resembling the tuning of an old radio.