JUST before the solstice, I spent a few days on the shores of Carlingford Lough. There was quite a good dawn chorus in the morning, to which the outstanding contributors were not the usual robins, but song thrushes. Although thrushes begin singing early in the year, the Carlingford ones were ahead of themselves, in full voice before the year had even turned. These fine vocalists have become scarce over much of the country but they seem to be thriving on the Cooley peninsula.