Seven pigeon chicks, six of them dead, were discovered dumped in a beauty spot by horrified park workers.
They were found in a bag at Moorcroft Wood, in Moxley, moments after a suspected fly-tipper was spotted at the site.
The Wildlife Trust which operates an environmental centre at the nature reserve off Bull Lane said a seventh chick was found alive, but in a poor condition and was put to sleep.
An investigation has been launched by Walsall Council following the incident which happened near the woodland’s boundary with Hawskwood Drive on September 24.
Darlaston South ward’s Councillor Paul Bott has campaigned to encourage more families to visit. “It is despicable that somebody would throw a bag containing this many dead birds into the wood,” he said.