There are several local specialists arranging birding trips
in southern Portugal.
Some of our guests used Algarve Birders and recommended them to
us. We got June to takes us for a walk at Ria Formosa
starting from our property and really enjoyed it - we
are happy to recommend them ourselves.
If you need more information about birding in the Algarve,
there is Birdforum - but you probably
know that :-)
If you come here and find you need/forgot/lost binoculars,
photographic equipment or similar, Niobo in Olhäo is your best bet.
They speak English and German as well as Portuguese,
and probably have the best selection in the country,
and at reasonable prices. What they don’t have they
can get.