bird drink grass hosepipe mouth pelican thirsty wader water white black blackbird groningen illustration merel nature singing vevtor Easter farm Rooster silhouette vector beach bluesky day fence fly seagull sky wings Heron blue bushes crane feathers mangrove ocean trees avian beak bill brush feather ibis plant plumage tree brown clouds gray mangroves reflections birds green herons orange paddy field rice sri lanka soaring summer