small blue kingfisher (alcedo atthis) sitting on a boulder by the lake : (pix sanjiv shukla)

small blue kingfisher common alcedo atthis eurasian river family alcedinidae small resident migrate river sparrow-sized chamber nest cavity bird short-tailed large-head blue upperpart orange underpart long bill animal feather feed fish diving visual adaptation prey water flying electric-blue himalayas rufous bright coloured cosmopolitan distribution tropical highly territorial solitary perch fight burrow mud wall egg riverbank eurasia north africa asia southeast asia