Rook / Ydfran

Corvus frugilegus

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Contains Ordnance Survey data
© Crown copyright and database right 2013

SN90 - Aberdare (Confirmed breeding) SO00 - Merthyr Tydfil (Confirmed breeding) SS87 - Porthcawl (Confirmed breeding) SS88 - Pyle (Confirmed breeding) SS96 - Llantwit Major (Confirmed breeding) SS97 - Bridgend (Confirmed breeding) SS98 - Pencoed (Confirmed breeding) SS99 - Rhondda (Confirmed breeding) ST06 - Roose (Confirmed breeding) ST07 - Ely Valley (Confirmed breeding) ST08 - Llantrisant (Confirmed breeding) ST09 - Abercynon (Confirmed breeding) ST16 - Barry (Confirmed breeding) ST17 - Cardiff West (Confirmed breeding) ST18 - Caerphilly (Confirmed breeding) ST19 - Ystrad Mynach (Confirmed breeding) ST27 - Cardiff East

Distribution map species lists

Breeding change maps

Species richness maps

© 2014 Glamorgan Bird Club

Breeding 1968-72

Status

Hectads


Possible

0


Probable

0


Confirmed

16

94%


Total

16

94%


Winter 1981/82-1983/84

Status

Hectads


Present

15

88%


Breeding 1984-89

Status

Tetrads


Present

0


Possible

32

8%


Probable

5

1%


Confirmed

86

21%


Total

123

30%


Winter 2007/08-2010/11

Status

Tetrads


Present

161

40%


Breeding 2008-11

Status

Tetrads


Present

59

14%


Possible

12

3%


Probable

6

1%


Confirmed

51

13%


Total

128

31%