Peterborough Bird Club annual report Rook  Corvus frugilegus | A | Common resident 1998 | 1999 | 2000 | 2001 | 2002 | 2003
2003	Common resident breeder, scarce passage migrant and scarce winter migrant. Relatively well-recorded this year, with 30 sites recording up to 1,200 birds (Deeping Lakes NR on 9 Oct (SPD)). Fifteen sites recording nesting birds. Interestingly, nesting activity was even noted in November at Norman Cross BP and other sites also recorded nesting activity in December. Surveyed nest counts (BT, SPD, KW): Bainton GP: 10; Baston village: 10; Deeping Gate: 20 (four sites); Deeping St James: 17 (two sites); Kate’s Bridge: 60; Market Deeping: 62 (four sites); Newborough: 23 (three sites); Peakirk: 167 (10 sites); Raveley Wood: 100+; Crowland: 59 (four sites); Dogsthorpe Star Pit NR: six; Lolham Bridges: 29 (three sites); Thorney: 40 (two sites); Farcet Fen: 20+; Sawtry: 63 (two sites).
2002	Common resident breeder, scarce passage migrant and scarce winter migrant. Another species for which there was a welcome marked increase in records, with reports from 20 locations. Notable counts as follows: 90 at Farcet Fen on 9 Dec (SPD) and 100 at Raveley Wood on 1 Apr and 24 Nov (BTO, KW). The only breeding record was of 155+ nests at Tanholt GP on 2 Apr (BHS).
2001	Common resident breeder, scarce passage migrant and scarce winter migrant. Yet another heavily under-recorded species, counts came from four dates – ‘hundreds’ at Milton Park on 6 Jan (MJW), 300 at Ferry Meadows CP 24 Jan (GRH), four at Morborne Hill on 21 Feb (BHS) and 40 at Prior’s Fen GP (BHS) 3 Sep.
2000	Common resident and winter visitor. Large counts came from King's Cliffe on 3 Jan, when there were 250+, and Morborne Hill, where there were 200+ on 1 Nov. This species is a prime candidate for a PBC area-wide spring survey.
1999	Common resident and winter visitor. The maximum count concerned 1,500 birds in a mixed flock with Jackdaws at Marholm on 24 Dec.
1998	Common resident. Nest counts in rookeries included Peakirk Wildfowl Collection 65; Peakirk village 63; Peakirk High Bank 24; Glinton 21; Deeping Gate 19; Bainton GP 13; Ben Johnson Pit 15, representing a population density of at least 6.5 nests/km sq (cf 13/km sq in 1946 and 4+/km sq in 1975, suggesting a population increase since the 1970s low point (CBR). The only significant records were of 80 at Ferry Meadows CP on 1 Feb, 100 at Dogsthorpe Star Pit NR on 28 Feb and 100 in Dogsthorpe on 30 May (all DS). Nene Washes: A rare visitor, though 25 were at March Farmers on 6 Dec.
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