Mapping the distribution of Hertfordshire's birds
Mean hourly count
Distribution maps
Change maps
Abundance maps
This map shows the relative abundance data from TTVs, plotted as mean hourly counts.
Map Index
Previous : Mallard
Next : Shoveler
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