20-23 cm, sexes similar. Unlike the blackish common swift, Apus apus, the greater is brown above with white belly and throat. Present from April to October, it nests in colonies...

33-41 cm, sexes similar. Grey brown, with whitish underparts during wintering, red in breeding season. Long and slightly upturned beak. Present throughout the year with varying...

17-21 cm, sexes similar. Black upperparts, red throat and whitish belly. Present from March to April and from September to October, it nests in rural buildings and in the valle,...

14-15.5 cm - the male has a grey head with black “moustache”, the female is beige; long rufous tail. Present throughout the year but undergoing strong decline in nesting:...

22-26 cm, sexes similar. Dark grey on the wings and blackish body, with pointed wings. Present from April to September, does not nest. It frequents wetlands during migration but...

35-39 cm, sexes similar. In February, it gains the dark brown cap for the breeding season, which it then loses in July-August. Present throughout the year ,with a few pairs...

28-34 cm, sexes similar. Grey and off-white in winter, in March it has a black neck and a yellow tuft behind a red eye. Present from August to April, it does not nest here. It can...

37-42 cm, sexes similar. Grey-brown with whitish underparts outside the breeding season, rufous in breeding season. More elongated and with longer legs than the bar-tailed godwit,...

63-75 cm, sexes similar. In winter the plumage is dark grey above, whitish underneath; the beak is more massive and held flat compared to the previous species. It is the most...