Barn Owl

Tyto alba

Sensitive species - sites withheld
Provisional map

 

TL20 - Hatfield and Potters Bar TL21 - Welwyn Garden City TQ19 - Watford and Borehamwood TL32 - Buntingford and Puckeridge TL33 - Barkway TL41 - Sawbridgeworth and N Harlow TL01 - Markyate TL31 - Hertford and Ware SP91 - Tring TL30 - Cheshunt and Hoddesdon TL00 - Hemel Hempstead TL10 - St Albans TL11 - Harpenden TL23 - Letchworth and Baldock TL12 - S Hitchin TL22 - Stevenage TQ09 - Rickmansworth TL42 - Bishop's Stortford Major towns Important bird sites 10km Square IDs Last updated 17-Nov-2008

First Breeding Atlas

Status

Tetrads


Possible

42


Probable

32


Confirmed

33


Total

107


Second Breeding Atlas

Status

Tetrads


Possible

30


Probable

14


Confirmed

9


Total

53


New Breeding Atlas

Status

10km


Possible

6


Probable

2


Confirmed

4


Total

12