Order: Charadriiformes - Family: Recurvirostridae The White-backed Stilt is a resident bird which breeds at Costanera. It is slender and has pink long legs and black and white plumage. Intermingling with other birds at the verge of the ponds the stilt stands out easily for its height and contrasting colour. The mating ritual of the White-backed Stilt consists of a sequence of displays which lasts some three minutes. It can be divided in three stages: courtship, copulation and postcopulation. The courtship stage, during which the female shows receptive by adopting a seesaw-like position with the upper part of the body slightly bent downwards. Meanwhile, the male responds to the stimulus with a sequence of displays. The copulation stage, where physical contact is made: the "cloacal kiss". And the postcopulation stage, the end of the ritual, with a display which is most endearing to human eyes.