avocet feeding in the marshlands of doñana, sanlucar de barrameda, spain

andalusia biodiversity doaplusmn ana natural beauty spain adventure animal behavior aquatic avian avocet bill biology birdwatching cadiz calm coastal conservation ecosystem ecosystems environment estuary exploration fauna feeding foraging habitat preservation landscape marshland migration nature ornithology outdoor recurvirostra avosetta reflection serene shorebird slender legs spring summer travel wading bird water wetland wildlife