himalayan cuculus saturatus eurasian cuckoo, fine grey with yellow eye rings on the stick over green grass land, fascinated

himalayan cuculus saturatus eurasian cuckoo fine grey yellow eye rings stick green grass land fascinated eyes common exotic camouflage wings prey beak outdoor plaintive nature background bird thailand animal wildlife branch avian fascinate beautiful migrant feathers stripe natural amaze cuculidae light silver hawk colorful creature flight plumage canorus line winter or