juvenile african darter (anhinga rufa) displaying its snake-like neck marievale nature reserve gauteng south africa.

bird animal beak wildlife seabird wing gull waterbird shorebird heron sea ducks waterfowl flight duck juvenile african darter anhinga rufa displaying marievale nature reserve gauteng south africa snake like neck slang slanghalsvoel conspic conspicuous slender nec long sharp bill used effectively spearing fish prey