lingfleet makes a question whether the black-cap (motacilla atricapilla) be a bird of passage or not: I chink there is no doubt of it: for, in April, in the very first fine weather, they come trooping, all at once, into these parts, but are never seen in the winter. They are delicate songsters.
Numbers of snipes breed every summer in some moory ground on the verge of this parish. It is very amusing to see the cock bird on wing at that time, and to hear his piping and humming notes.
I have had no opportunity yet of procuring any of those mice which I mentioned to you in town. The person that brought me the last says they are plenty in harvest, at which time I will take care to get more; and will endeavour to put the matter out of doubt, whether it be a nondescript species or not.
I suspect much there may be two species of water-rats. Ray says, and Linnaeus after him, that the water-rat is web-footed behind. Now I have discovered a rat on the banks of our little stream that is not web-footed, and yet is an excellent swimmer and diver: it answers exactly to the mus amphibius of Linnaeus (see Syst. Nat.), which he says 'natat in fossis et urinator.' I should be glad to procure one 'plantis palmatis.' Linnaeus seems to be in a puzzle about his mus amphibius, and to doubt whether it differs from his mus terrestris; which if it be, as he allows, the 'mus agrestis capite grandi brachyuros' of Ray, is widely different from the water-rat, both in size, make, and mariner of life.
As to the falco, which I mentioned in town, I shall take the liberty to send it down to you into Wales; presuming on your candour, that you will excuse me if it should appear as familiar to you as it is strange to me. Though mutilated 'qualem dices.. . antehac fuisse, tales cum sint religuiae!'
