A T least one large roost of Ravens (Corvus corax) has been reported in Scotland and another in W a l e s . In W . Cornwall there was one in 1945 and 1946 near an abnormally liberal food supply. In October the number of Ravens using this roost was between 100 and 150. By early February there were less than 50 and by March the maximum counted was 16. From time to time Raven roosts have doubtless oc...

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