
Corn Crake (Crex crex) Photo by By Alpo Roikola – Own work by the original uploader, CC BY 3.0, https://commons.wikimedia.org/w/index.php?curid=132715911
Dear Readers, you might remember my featuring the Corn Crake in one of my Red List posts a while back, so I thought I’d share this happy tale of people coming together to preserve this increasingly-rare bird. In 2014, the first male Corn Crake for 17 years was heard calling on Rathlin Island in Northern Ireland, which looks like an extraordinarily beautiful place.

Rathlin Island (Northern Ireland) Photo by Brian O’Neill
By 2024 there were about four calling males visiting the island. And if you haven’t heard what a calling male sounds like, here you go….it always sounds to me like someone vigorously running a thumb nail over the teeth of a comb.
Now, Corn Crakes are surprisingly particular birds – they need cover both for when they’re calling at the start of the season, and for their little ones when they breed. The vegetation needs to be about 20 cms tall, and to have an ‘open’ structure (so no brambles or, heaven forbid, Japanese Knotweed). Trouble is, when the birds fly in from Africa there aren’t enough plants that are sufficiently tall so early in the season, so the RSPB, with help from volunteers and farmers from all over Norther Ireland, are helping out.
It turns out that stinging nettles are the ideal plants to provide what the Corn Crakes need, and so they are dug up at various sites across Northern Ireland, pressure-washed to remove soil, seeds and invertebrates that might cause trouble on the island, and then transported to where they’re needed. The nettles are then planted around the margins of the fields that the birds favour, so that they have somewhere to hide until the grass in the meadow grows. In 2024, the RSPB created 250 square metres of cover, from about 14 tonnes of nettle root gathered by volunteers.

By Richard Crossley – The Crossley ID Guide Britain and Ireland, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=29446896
Clearly the approach seems to be working – the first male Corn Crake was heard on Rathlin Island on 17th April this year. There’s a nice BBC article about the whole endeavour here.
The RSPB have also worked hard to eradicate ferrets and rats from the island, which hosts not only Corn Crakes but Puffins, Fulmar, Kittiwakes and Guillemots, plus many species of ground-nesting birds. No ferrets have been recorded on the island for a year, so fingers crossed that they’re gone.I’m as fond of ferrets and rats as anyone, but humans, as usual, have upset the balance of the ecosystem by bringing in animals to a habitat where they have no natural predators, and the birds in particular are completely defenceless against them. Let’s hope that some kind of equilibrium can be restored.












































