Four blackbird chicks had a lucky escape after their mother built her nest in a road trailer which was then driven 300 miles to Stamford shortly after the eggs had hatched.
The nest of five chicks was only discovered after the driver, whose name has not been released, found them tucked away in the trailer she had driven from Plymouth.
The birds, which weighed less than 50g, were eventually taken to the RSPCA East Winch Wildlife Centre in Norfolk to be cared for until they are old enough to survive in the wild.
Unfortunately one was too weak to survive without the help from its mother, but the other four are now recovering from their ordeal with the expert help from the RSPCA.
Manager Alison Charles said without help from the centre the birds would not have been able to survive.
She said: “They are really tiddly little things – there’s no way they would have survived on their own.
“Without their mum to feed them and care for them these tiny blackbirds need us to step in and bring them up instead.“
Staff at the centre are now looking after birds round the clock, using a syringe to feed them every 20 minutes.
It is hoped soon the chicks will be able to fend for themselves in a large aviary before being released back into the wild.
Mrs Charles said: “It was just an unfortunate accident that they were taken so far away from their mum – the driver simply did not know they were there and then it was too late and too far to return them.”
Blackbirds are the most numerous fledgling the centre has to look after and last year they had a total of 172 in their care.
Post release studies have shown that rehabilitation does work and that blackbirds often survive in the wild after being hand reared in this way.