Immature Black-crowned Night-Heron (Nycticorax nycticorax nycticorax), Tigre, Delta del Parana, Argentina, South America

america american american animal animals ardeidae argentina argentinian aves bird birds black black black crowned bodies body ciconiiformes crowned day daylight daytime del delta during egret egrets entire exterior exteriors face fauna full full body go goes going heron heron herons immature kingdom lateral length nature night night night heron nobody nycticorax nycticorax of one outdoor parana photo photos pup pups separate separately shot shots side sidewise single singly south south squab squabs tetrapod the tigre vertebrata vertebrate vertebrates view walk walking walks water waters whole wild wildlife world young younger