The RSPB is appealing for volunteers in Norfolk, Suffolk and Essex to help one of the UK's rarest seabirds, the Little Tern.
Their numbers have seriously declined in recent years as they struggle to find safe beaches to nest and feed their young.
Over a third of the UK breeding population make a home in East Anglia.
Twenty-six rare wading bird chicks have been hatched by conservationists in the Fens as part of a project to protect declining species.
Four UK wading bird species saw numbers plummet, as poor weather compounded long-term declines in populations, a new survey revealed.
Their call is traditionally the first sound of spring but maybe not for much longer as cuckoo numbers are dying out.