Crymlyn Bog

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The last time we visited Crymlyn  Bog was early spring. Since then we have been
actively involved with our CES sites. Crymlyn Bog managed by CCW is the largest
lowland Fen in Wales. The nature reserve is surrounded by an industrial and
residential landscape on the eastern edge of Swansea and was formed during the
ice age.
Heather. Cedwyn and I met up at 05.30am this morning to set
up 2 x 120ft net runs on the footpath that runs through the reed beds in the
hope to catch some warblers before they start there Autumn migration. It was
quite cool first thing and there was only the odd bird moving around. As it
warmed plenty of Swallows started flying about many of which came low within
feet of the ground and we thought it maybe possible to do a Swallow roost later
in the month. But at this time we had not had a single bird in the nets, so at
08.45 we decided to call it a day and go home. As we approached the nets there
were 4 birds in them1 x Sedge Warbler, 2 x Reed Warbler and a Wren. The
Warblers showed no sign of fat deposits in preparation for migration, which was
a surprise. 
The next visit produced a 1 x Robin, 1 x Reed Warbler and a Meadow
Pipit which was in primary and body moult and it was interesting to note the secondary’s
had started as well.

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