Far Ings is a legally protected site of special scientific interest managed by Lincolnshire Wildlife Trust.
Wilmot said: “Building dens in those woodland areas where things are breeding could at this time of year be illegal.”
As one of the site’s nature experts, she helps to educate children and visitors about the importance of the reserve.
“The site has got extensive reed bed systems, woodland, meadows,” she said.
“It’s a really wonderful, beautiful, but also internationally important nature reserve.”
She said she hoped more people would visit reserves.
“It’s proven that time in nature reduces anxiety, it brings your blood pressure down,” she added.