This interesting picture of ‘two birds on a perch’ — Small Blue Kingfisher – Alcedo atthis and Green Bee-eater – Merops orientalis — is a behaviour document captured by Star of Mysore photographer M.N. Lakshminarayana Yadav. As an ethologist explains, the Small Blue Kingfisher, is a ‘Diving Kingfisher,’ it does not hover above the water-body…