This depth was chosen so that about half of the area in each pond section was [less than] 20 cm deep and half was [greater than] 20 cm deep (20 cm is as about as deep as the largest wading birds
can forage effectively).
Phil Burston, RSPB water policy officer, said work to keep the sites wet meant that at the beginning of the drought the reserves were in good condition with full pools, ditches and soggy fields attracting wading birds
to breed - but now they were very dry.
The beach is protected as rare wading birds
, known as black-tailed godwits, spend their winters on the mudflats.
From the woodlands the walk goes to the shoreline which has one of the most interesting collection of winter wading birds
The Royal Society for the Protection of Birds Scotland said: "The Firth of Forth is one of the most important wading bird
sites in Scotland.
The hedgehogs are being culled because they are eating the eggs of rare wading bird
Scottish Natural Heritage says the hedgehogs must be killed as they threaten the island's wading bird
A rare wading bird
that flies 1,600 miles every year from Russia to spend its summers on the British south coast has been shot dead by a Russian professor, the British Trust for Ornithology (BTO) says.
News quickly spread among the bird-watching fraternity and dozens descended on the nature reserve to catch a glimpse of the wading bird
not usually seen further south than the Shetland Islands.
If we have got a lack of rain, plus high temperatures, that can prove fatal for wading bird
The wading bird
is an exceptional breed and boasts an upturned bill.
It is also protected under UK law as home to many species of wading bird
A variety of wading birds
, ducks and geese overwinter on the reserve, which is a European Special Protection Area for its internationally-important populations.
THE second Wirral Wader Festival will take place next month, with vast numbers of wading birds
flocking to the borough's unique coastline.
like black-and-white oysters catchers (look for their distinctive red beak) and black-headed gulls will also be hunting in rock pools for tiny crustaceans - to eat