Mapping the distribution of Hertfordshire's birds
Mean hourly count
0 - <0.50
0.50 - <1.25
1.25 - <2.00
2.00 - <3.25
3.25 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 : Lesser Whitethroat
Next : Grasshopper Warbler
1967-73 Breeding Atlas
1988-92 Breeding Atlas
2008-12 Breeding Atlas
1967 vs 1998 Change
1998 vs 2008 Change
2008-12 Breeding Abundance
Hertfordshire Bird Atlas webpages designed by LTD Design Consultants and built by Garganey Consulting