The start of longstanding roadworks which has blighted a village for eight months have been delayed once again.
Initial work to repair The Street in Aldham, near Hadleigh, which collapsed in November, was due to start on Monday following months of investigations.
However, Suffolk Highways has confirmed progress has been delayed until September due to birds nesting in the area.
An ecologist visited and identified birds, believed to be a Robin, Pied Wagtail and Wren, close to the bank where the road collapsed.
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It is against the law to disturb nesting birds without a licence.
"Whilst Suffolk Highways undertook vegetation removal to large areas of the site to mitigate against the risk of nesting birds, it was not possible to do this on the area of scrub in the unstable slip area of the bank failure on safety grounds," a statement from Suffolk Highways.
"This is the area where birds are suspected to be nesting."
It is not the only road in the area to be disrupted by wildlife activity.
Flowton Road in nearby Elmsett has reopened following a large defect in the road, believed to be caused by badgers.
The spokesman for Suffolk Highways added: "We understand this will be disappointing news for residents, however birds and other wildlife are protected, and we have a duty of care to ensure all works are carried out safely and in line with environmental law.
"We are sorry for the frustrations that this update may bring; however, we must ensure we are following the environmental laws in place."
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