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Rook Corvus frugilegus movements at Landguard, Suffolk Nigel Odin, Landguard Bird Observatory
Bird Observatory Rook records clearly show a spring passage, lar Rook (Corvus Landguard frugilegus) February into June peaking in March & April. Occasional sightings in late wi largely due to sightings in 1987, the year prior to when three pairs attempte movements at Landguard, Suffolk lighting tower in the Port of Felixstowe (Piotrowski 1988). At this time all co
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regularly removed lighting towers preventing Landguard Bird Observatory Rook records clearlyfrom show a spring passage, largelysuccessful from the breeding. end of February into June peaking in March & April. Occasional sightings in late winter and into July are largely due RookBird-day Bird-day 55 Day - 2018 Rook DayTotals Totals1983 1983-2018 to sightings in 1987, the 140 year prior to when three pairs attempted to nest 120 on a lighting tower in 100 the Port of Felixstowe 80 (Piotrowski 1988). At this time all corvid nests 60 were regularly removed 40 from lighting towers 20 preventing successful breeding. 0 J
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THE HAR R I ER – S pDespite ring 2 0more 1 9 bird-days in spring than autumn there are fewer double figur
with a peak day count of 24 heading south on 22nd April 1993. There is a sp movements in a southerly direction. Autumn passage is mostly from mid-Se
