Letters

ICELAND R E D W I N G S WINTERING SIRS,--October 1956 saw an unparalleled " i n v a s i o n " of Iceland Redwings (Turdus musicus coburni) through Fair Isle, big movements occurring on the i2th, i8th-2oth and 2zLth-25th with westerly weather. Of 333 Redwings trapped and ringed at the Bird Observatory, over 200 were of the Iceland race. Since it is reasonable to suppose that the bulk of these birds a...