Willow Warbler / Telor y Helyg

Phylloscopus trochilus

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Contains Ordnance Survey data
© Crown copyright and database right 2013

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

1

6%


Confirmed

16

94%


Total

17

100%


Winter 1981/82-1983/84

Status

Hectads


Present

0


Breeding 1984-89

Status

Tetrads


Present

1

<1%


Possible

80

20%


Probable

78

19%


Confirmed

177

43%


Total

336

83%


Winter 2007/08-2010/11

Status

Tetrads


Present

3

1%


Breeding 2008-11

Status

Tetrads


Present

35

9%


Possible

128

31%


Probable

81

20%


Confirmed

83

20%


Total

327

80%