Chepstow, Kempton and Newcastle, and mating call of the eider duck

I've always been fond of eiders. I have never verified this, but I imagine that this afternoon's big race, the Eider Chase at Newcastle, is named after the bird: there is a colony on the Farne Islands. I have seen them occasionally, in St James's Park, and enjoyed the curious mating call of the male. The race is a tough four miles and one furlong. I have gone for James Reveley's Eyre Square

305 Kempton: Michel Le Bon
325 Newcastle: Eyre Square
345 Chepstow: Educated Evans