Abstract: In spring large numbers of water birds, particularly waders, nest in the Nature Reserve. The salt works, their main habitat, harbour large breeding populations of avocets (Recurvirostra avosetta). In Portugal, this species nests regularly only in the eastern Algarve. It builds a rudimentary nest in a hollow in the ground, laying 3 – 4 eggs, brownish-coloured with darker patches. The chicks are born after approximately 24 days of incubation and are able to run and swim 3 – 4 hours after hatching. The avocet sweeps the mud from side to side with its bill when searching for food. Sensory cells enable the bird to feel with its bill, which it rapidly snaps shut to catch its prey. The abandonment of salt production is a worrying development for the bird communities that use the saltworks.
Titolo e contributi: La avoceta / Anselmo Costa
Pubblicazione: Reserva natural do Sapal de Castro Marim ; Instituto da conservação da natureza, 2002
Descrizione fisica: 1 videocassetta (VHS) (8 min.) : color., son.
Lingua: Portoghese (lingua del testo, colonna sonora, ecc.)
Sono presenti 1 copie, di cui 0 in prestito.
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