Crane Population Recovery at Lakenheath Fen
A nature reserve has significantly contributed to the restoration of the UK's tallest bird species during a record-breaking breeding year. The RSPB's Lakenheath Fen site in Suffolk has been home to common cranes since 2007, with three breeding pairs currently established at the reserve.
The common crane species became extinct in the UK approximately 400 years ago due to overhunting and wetland habitat loss. However, last year witnessed a record 37 chicks born across the country, marking a notable milestone in the species' recovery.
Population Growth and Habitat
Dave Rogers, site manager of RSPB Lakenheath Fen, described the rebuilding of the crane population as a "slow process" and expressed his honour that several birds have chosen the reserve to raise their chicks.
Cranes are notable for their height, standing over a metre tall, and their distinctive call, which can be heard up to 3.5 miles (5.6 km) away. In 2023, the RSPB recorded 87 pairs across the UK, resulting in 37 chicks and bringing the total population to approximately 250 birds.
According to the RSPB, the species went extinct in the 1600s before a small number of wild cranes from mainland Europe began to venture into the Norfolk Fens. Despite the record numbers in 2025, cranes remain vulnerable due to climate change impacting their wetland habitats.
The cranes at Lakenheath Fen benefit from the site's reedbeds, which provide access to water and shelter away from human disturbance.
Conservation Efforts and Breeding Details
Since 2007, the reserve has successfully raised 26 chicks. In 2024, the conservation team created "runways"—open spaces designed to help the birds take flight safely.
Rogers believes there is potential to accommodate additional breeding pairs at Lakenheath, though territorial behaviour among cranes may limit this expansion.
"We might be able to squeeze in additional birds, but it's a question of how aggressive a new pair is going to be and how tolerant the existing birds are going to be to the new pair," he said.
"We might be able to get four pairs; we keep our fingers crossed.
"They only lay two eggs so they can only rear a maximum of two chicks a year.
"Then it's probably three to five years before the young cranes pair off and settle down.
"It usually takes them a couple years to learn to be good parents, so it's a slow process building up a crane population."
Crane Behaviour and Observation
Haydn Fox, assistant warden at RSPB Lakenheath Fen, explained that crane pairs mate for life and exhibit strong loyalty to each other.
"We know they're nesting when we start seeing single cranes out in flight," he said.
"They're just doing a change over on the eggs, so the other will go and feed, come back and relieve their partner of the duty."
Fox noted the emotional connection formed with the birds at the site, located near Lakenheath railway station and adjacent to the River Little Ouse, which forms the border with Norfolk.
"They're such majestic birds when they're in flight, they've got their own personalities as well," he said.
"We know the pairs really well here; you shouldn't humanise them, but naturally we do... it's lovely to see them all the time."
Visitor Experience and Public Perception
Kevin Middleton, a bird watcher who frequently visits RSPB Lakenheath Fen, shared his impressions of the cranes over the years.
"When you see something that big it's incredible and it really does make you [think twice] about something so big and heavy going through the sky," he said.
Middleton described the record number of chicks as a "great success story."
"If you'd have told me when I was seven or eight and first getting into bird watching that I'd be seeing cranes in my home county, I'd have laughed," he continued.
"But here they are. You do see them and you do hear them as well.
"It is a success story and perhaps one of the few that's out there at the moment."
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