Mallard / Hwyaden Wyllt

Anas platyrhynchos

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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 SS97 - Bridgend (Confirmed breeding) SS98 - Pencoed SS99 - Rhondda (Confirmed breeding) ST06 - Roose (Confirmed breeding) ST07 - Ely Valley (Confirmed breeding) ST08 - Llantrisant (Probable breeding) ST09 - Abercynon ST16 - Barry (Confirmed breeding) ST17 - Cardiff West (Confirmed breeding) ST18 - Caerphilly (Confirmed breeding) ST19 - Ystrad Mynach (Confirmed breeding) ST27 - Cardiff East (Confirmed breeding)

Breeding 1968-72

Status

Hectads


Possible

0


Probable

1

6%


Confirmed

13

76%


Total

14

82%


Winter 1981/82-1983/84

Status

Hectads


Present

15

88%


Breeding 1984-89

Status

Tetrads


Present

0


Possible

18

4%


Probable

45

11%


Confirmed

62

15%


Total

125

31%


Winter 2007/08-2010/11

Status

Tetrads


Present

217

53%


Breeding 2008-11

Status

Tetrads


Present

52

13%


Possible

46

11%


Probable

39

10%


Confirmed

83

20%


Total

220

54%