Regarding Jean Morgan's surprise at finding Red-legged Partridge at Treddol it's not as surprising as me seeing one a couple of years ago near my home in Aberhosan Machynlleth! Last year I was told of a couple of them regularly visiting a garden near Darowen Machynlleth. I actually saw these birds myself last year near the property concerned. The answer my dear Jean lies on your own doorstep as I am led to believe that David Granger of Glan Clettwr Treddol has released a few birds on his extensive land in recent years (no doubt to provide some good sport!) Its a nice looking bird nonetheless and of course in Norfolk/Suffolk they call them 'Little Frenchmen'. As a matter of interest when did anyone last see our 'endemic' Grey Partridge in Ceredigion? The last ones I saw in Wales were near Buttington Welshpool a good few years ago.
Charles the II made attempts to introduce the Red-legged to Britain but it wasn't until a century later in 1770 that the Earl of Hereford imported large numbers of eggs from France and put them under his brooding hens on his estate near Orford Suffolk. The rest is history as they say!
Red Legs often make two nests and lay two clutches, the cock bringing up one brood, the female the other.