Barn Owl / Tylluan Wen

Tyto alba

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Contains Ordnance Survey data
© Crown copyright and database right 2013

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

Breeding 1968-72

Status

Hectads


Possible

5

29%


Probable

3

18%


Confirmed

8

47%


Total

16

94%


Winter 1981/82-1983/84

Status

Hectads


Present

3

18%


Breeding 1984-89

Status

Tetrads


Present

1

<1%


Possible

3

1%


Probable

1

<1%


Confirmed

4

1%


Total

9

2%


Winter 2007/08-2010/11

Status

Tetrads


Present

47

12%


Breeding 2008-11

Status

Tetrads


Present

15

4%


Possible

5

1%


Probable

3

1%


Confirmed

11

3%


Total

34

8%