Twenty-five years ago: 'One of the most amazing events of the month [May 1973] was an influx of Red-footed Falcons Falco vespertinus from continental Europe from about 20th, continuing through June. 'Although this insectivorous falcon has been an expected spring and early summer vagrant for many years, this influx was on an entirely new scale (both numerically and geographically). About 40 birds in ...
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