The Common Snipe is a cryptically patterned wader, registered as Gallinago gallinago. Its very long straight bill, relatively short legs and brown-striped plumage distinguish it from the more exposed, long-legged waders often seen on open mud. Buff stripes along the back help break up the bird’s outline among wet vegetation. Snipe can remain concealed at close range and may be detected only when they move or call. The Portuguese local name is narceja-comum. The registered Douro association is restricted to the Porto and Vila Nova de Gaia estuary reserve at Afurada–Cabedelo–São Paio. The original site guide names snipe among the birds of the estuary and describes it as a more elusive species in the marsh habitat. This does not establish occurrence along inland Régua–Pinhão or guarantee a view from the navigation channel.

Douro
Porto / Vila Nova de Gaia: Douro estuary reserve, Afurada–Cabedelo–São Paio; NOT a claim for inland Régua–Pinhão

Bar-tailed godwit
Black Redstart