I'm shocked to see this all over Twitter this morning
It's a shame about the document as it's really interesting. One of the most pertinant pages is 38 which deals with predateurs. The UK study (Fletcher et al 2010) quotes figures on the high moors for Lapwing, Golden Plover & Curlew. The control of Foxes & Crow family tripled reproduction success & the areas controled showed an increase in numbers of 14% a year whereas the areas without pest control dropped by 17% a year. These stats are repreated by other countries studies. However nobody is quoted as just targeting Foxes & leaving Crows.
In Finland they did studies which showed that predation from artificial nests (79%) was twice that from their own nests (31%) & that out of all the predators Foxes & Raccoon dogs were responsible for the loss of 32%. Other predators mentioned were Hooded Crow, Magpie, American Mink & Ermine.
It would be interesting to know what other predateurs are in the areas where the Fox & Crow control took place.
Deer are also regularly culled at Minsmere. Nobody likes it but too many birds would lose out if it wasn't done.
Don't forget they are also culling Red Deer too as part of habitat management.
The Longshaw estate has always kept the numbers down to around 200 but I was told the other day when I went up there the RSPB have taken it much lower this year.
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