Mapping the distribution of Hertfordshire's birds
Mean hourly count
0 - <0.25
0.25 - <1.00
1.00 - <1.50
1.50 - <3.50
3.50 or more
Distribution maps
Change maps
Abundance maps
This map shows the relative abundance data from TTVs, plotted as mean hourly counts.
Map Index
Previous : Smew
Next : Ruddy Duck
1981-84 Winter Atlas
2007-12 Winter Atlas
2007-12 Winter Abundance
Hertfordshire Bird Atlas webpages designed by LTD Design Consultants and built by Garganey Consulting