UK Ringing report 2002 (1 Viewer)

Jane Turner

Well-known member

• Dec 17, 2003

• #1

http://www.bto.org/news/news2003/nov-dec/ring_report.htm

 

CJW

Hit-and-run WUM

• Dec 17, 2003

• #2

86,735 Blue Tits ringed? That'll provide some useful new data then - especially with a 2% recovery rate....

 

Jane Turner

Well-known member

• Dec 17, 2003

• #3

CJW said:

86,735 Blue Tits ringed? That'll provide some useful new data then - especially with a 2% recovery rate....

Click to expand...

and 95% of those will be within 10km.

Shedloads of Reed Warblers though!

 

CJW

Hit-and-run WUM

• Dec 17, 2003

• #4

So, and I'm sure this will have been asked before on another thread, what possible value can be had from ringing 86,735 Blue Tits?

 

Jane Turner

Well-known member

• Dec 17, 2003

• #5

Well..... If they start to undergo a decline..like eg. Song Thrushes, then there will be some very robust data. Add the age related totals to the pure numbers and you have a very sensitive barometer of the breeding success.... then I'm stuck.

I guess its more about it impossible not to catch Blue tits...they throw themselves into nets with gay abandon and are a right royal pain in the arse to get out of the net!. I did get some interesting recoveries for Blue tits... One to Cumbria, one to Doncaster and one to Rochdale!

The BTO used to frown on the ringing of House Sparrows... and hence possibly missed the start of the decline!

 

CJW

Hit-and-run WUM

• Dec 17, 2003

• #6

Mmmm. (Chris rubs chin and looks sceptical).
Thanks, Jane.

 

Jane Turner

Well-known member

• Dec 17, 2003

• #7

I did my best defending the not overly defendable... If someone would invent something that stopped Blue Tits catching themselves i'd be very interested...it might even push me into taking up ringing again.