Conservation group Wild Justice has launched a legal challenge to the general licences issued by Natural Resources Wales (NRW), which sanction the shooting of pest bird species.
To pay for the challenge, which the group says will cost about £42,000, Wild Justice has launched a crowdfunding page.
Within a few hours of doing so, more than £4,000 had been collected towards an initial target of £6,000.
“This is the latest in our challenges of the legality of the general licences which allow the casual killing of millions of birds across the UK,” Wild Justice said in a statement.
“Although NRW identify the purposes of their general licences, for example nature conservation, protecting crops from serious damage and human health, they do not identify the circumstances under which there is no non-lethal alternative to using lethal control.
“This, we argue, is unlawful and amounts to allowing casual killing of otherwise protected birds.”