Dartford Warbler (1 Viewer)

T

tommy10k

New member

• Nov 29, 2005

• #1

Hi, i'm currently completing an undergraduate geography dissertation, in short it will be looking at the dartford warbler and how far north in the UK it might disperse under a change in climate. However i have a problem i know that the bird only really exists along the south coast so it must be just warm enough for it their but at what temperature can the bird not really live at, does anyone know a threshold temperature for the bird to survive?

Sorry i know it might seem like an aweful question but if anyone has got any ideas that would be great.

Tom

 

London Birder

Well-known member

• Nov 29, 2005

• #2

probably best to have a look at any isotherm info in BWP

 

David FG

The Big Dipper

• Nov 29, 2005

• #3

Not sure if this helps at all, but it managed (just) to hang on through the terrible Winter of 1962-63.

 

senatore

Well-known member

• Nov 30, 2005

• #4

Hi Tom,
I do'nt know if this helps at all but I have seen these great birds several times on Dunwich heath which is close to Minsmere in Suffolk and it can get pretty cold there in the Winter.

Max.

 

A

Amarillo

Well-known member

• Nov 30, 2005

• #5

Dartford warblers are no longer just on the south coast. They have spread to South Wales and Norfolk. Considering that Norfolk winters can be harsher than West coast winters much further north, I doubt if there are climatic reasons preventing their spread further up the west coast of Britain.

 

Hedgewitch

Well-known member

• Nov 30, 2005

• #6

It gets pretty cold on Dartmoor in winter and I see them there, although to be fair, not at high altitudes.

 

Runestone

Well-known member

• Dec 1, 2005

• #7

I saw one at Rainham Marshes yesterday and it was bloomin' freezing there!