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Table 1 Summary of data from 42 hen harrier nests, watched during years 1994–1999

From: Female begging calls reflect nutritional need of nestlings in the hen harrier Circus cyaneus

Year Nest number Chick ages (weeks) Number of chicks Fed / Unfed Time watched (hrs) Number of Bouts Number of calls
1994 1 2–6 5–4 U 84.03 73 882
1994 2 1–6 4–3 U 105.97 45 817
1994 3 1–3 5–2 U 31.61 13 98
1994 4 1–6 4–2 U 73.46 52 1592
1994 5 2–6 6–4 U 107.32 63 2479
1994 6 2–6 3 U 76.38 23 501
1994 7 1–4 3 U 66.87 54 1682
1995 8 1–6 5–4 U 99.64 107 1812
1995 9 1–6 4–3 U 105.51 33 708
1995 10 1–6 4 U 91.8 117 2721
1995 11 2–5 4 U 115.82 86 2692
1995 12 1–5 3 U 86.14 114 2260
1995 13 1–5 5–3 U 114.94 114 2647
1996 14 1–6 4–2 U 152.22 99 2244
1996 15 1–5 4–3 U 142.22 112 1396
1996 16 1–5 6–4 U 114.14 88 3645
1996 17 1–5 4–3 U 101.16 117 3089
1996 18 1–6 3–2 U 132.81 108 4039
1998 19 1–6 5–4 U 87.09 79 2837
1998 20 2–5 3 U 82.95 98 3602
1998 21 1–5 5–2 U 77.67 56 1470
1998 22 1–5 5–4 U 78.34 85 2603
1998 23 3–6 4–2 U 68.58 45 1005
1998 24 2–6 5–3 U 77.5 78 1918
1998 25 1–5 4–3 F 70.35 83 1206
1998 26 2–5 4–3 F 57.43 41 396
1998 27 2–5 3–2 F 58.5 35 1503
1998 28 1–5 5 F 53.91 61 846
1998 29 2–5 2 F 59.5 66 1047
1998 30 2–5 3 F 70.48 29 520
1998 31 1–5 5 F 95.33 115 1780
1998 32 1–5 4 F 63.99 56 704
1998 33 2–5 6–4 F 86.77 61 1270
1999 34 1–5 2 U 78.41 66 829
1999 35 1–5 4–2 U 113.66 66 1034
1999 36 1–5 2 U 77.84 67 1871
1999 37 2–5 3 U 101.58 78 3027
1999 38 1–5 5–4 F 95.5 27 187
1999 39 1–5 2 F 112.84 56 735
1999 40 1–5 4–3 F 125.25 78 602
1999 41 1–5 4–2 F 112.09 61 1174
1999 42 2–5 3 F 101.58 46 496
  1. The table shows the range of chick ages at each nest during watches, the number of chicks, showing decline due to chick mortality, the total number of hours each nest was watched for, the number of bouts of begging and the total number of begging calls recorded