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One in six species - such as water voles and curlews - are currently at risk of vanishing from Wales, which has seen a 20% decrease on average in its wildlife over the last 30 years.

The slender-billed curlew once traveled a vast range, migrating across Central Asia and the northwestern African coast.

Four UK shorebirds - the grey plover, dunlin, turnstone and curlew sandpiper - are becoming more endangered on the red list.

"A curlew," he says, and I just glimpse its long curved beak as we pass.

The Eurasian curlew could be gone in Wales as a "viable breeding species" by 2033 if a 6% annual decline continues, experts warn.