Bird Atlas 2007-11

Bird Atlas 2007-11

 

Tetrads status as of 8th June 2011   Grey dots 1-19 species Orange dots 20-29 species Red dots 30-39 species Black dots 40+ species         Data provided by Dave Ferguson Â

 

Winter Tetrads status as of 1st March 2011   Grey dots: 1-14 species Orange dots: 15-24 species Blue dots: 25-39 species Black dots: 40+ species   Average species per tetrad – 44       Data provided by Dave Ferguson Â

 

Most of you
accessing this site will be aware of the BTO atlas project to produce a
concurrent winter and breeding atlas over the next 4 years (using 10km x 10km
squares. However what you might not know is that there is also a plan to produce
a detailed Bucks atlas at the tetrad (2km x 2km) level using the same data.

This will then
give us the chance of assessing the species local to Bucks interest and perhaps
answer some of the following imponderables.

Just how many
Buzzards and Ravens are establishing themselves?

How are Corn
Buntings, Partridges and other farmland birds faring in the north and west?

 

A Corn Bunting and the species distribution map from the “Birds of Buckinghamshire” 1991.  The species has declined significabtly since that time.

Are Willow
Tits and Lesser Spotted Woodpeckers almost gone?

 

The map from the 1991 Birds of Buckinghamshire shoes that the Lesser Spotted Woodpecker was scarce at that time.  Has the species declined since that time?

In the winter where do Bramblings
go during the day?

 

I’m sure you
could think of many more.