This was an informal survey of rookeries in Berkshire as an attempt to establish a baseline for future surveys. The survey revealed the following information which we will aim to build on in the future. Thanks go to Brian Clews for organising and collating the results and to the observers who kindly sent in their sightings.
| Site | Grid ref | Nests |
| Nr Membury Services | SU315756 | 21 |
| Portdown East H’ford) | SU350678 | 21 |
| Inkpen, Lower Green | SU357647 | ? |
| Shefford Woodlands | SU364732 | c70 in 3 clumps |
| Shefford Woodlands | SU361733 | 5 |
| Shefford Woodlands | SU361728 | 20 |
| Inglewood | SU360662 | 28 |
| Avington Lock 76 | SU362681 | 21 |
| Winding Wood House | SU383708 | 50 |
| Kintbury Park | SU384672 | 10 |
| Kintbury, Newbury St | SU387668 | 14 |
| Kintbury Vicarage | SU384669 | 13 |
| A4, Barton Court | SU385684 | 10 |
| Kintbury, Laylands Green | SU388662 | 65 |
| Barrymores | SU385661 | 10 |
| Winterbourne Wood | SU446719 | 10 |
| North Heath, Chieveley | SU460745 | 10 |
| Chieveley, nr School | SU475740 | 10 |
| Chieveley, nr Church | SU474741 | 10 |
| A34, Sth J13, Chieveley | SU480726 | Small |
| A34/M4 roundabout | SU480729 | c110 |
| Beedon, Nth Chieveley | SU488775 | ? |
| Priors Ct School, W H’tage | SU488736 | ? |
| East Ilsley west side of A34 | SU489813 | c15 |
| World's End | SU488767 | c70 |
| A34 nr Chieveley | SU484737 | 4 |
| A34 nr Showground | SU480729 | 2 |
| Curridge, B4009 | SU490720 | ? |
| East Ilsley east side of A34 | SU491818 | 6 |
| East Ilsley east side of A34 | SU491815 | 60/70 |
| Hermitage | SU521742 | c100 |
| M4 W Yattendon (Eling) | SU536743 | 90 |
| Compton | SU5478 | 40 |
| Nth M4 nr Bottomhouse Fm? | SU590740 | 40 |
| Streatley | SU595807 | 30 |
| Streatley Farm | SU598815 | 60 |
| Lower Basildon West | SU600794 | 17 |
| Bradfield | SU605725 | 40 |
| Padworth | SU610685 | 38 |
| Nth of M4 nr Bradfield | SU612737 | 2 |
| Lower Basildon | SU612785 | 46 |
| Maidenhatch, Nr Tidmarsh | SU618739 | 35 |
| Englefield Estate | SU633717 | large |
| Purley, Nursery Gdns | SU660762 | ? |
| Theale Village | SU640712 | 7 |
| Tilehurst, Park Lane | SU664734 | 5 |
| Burghfield Common | SU665677 | 70 |
| Purley Meadows/Home Fm Wd | SU665769 | Large |
| Tilehurst Station | SU675753 | 56 |
| Burnthouse Lane, Rdg | SU687690 | 46 |
| Grazeley, Goodboys Lane | SU679666 | 36 |
| Grazeley | SU695675 | 20 |
| Grazeley | SU703673 | 14 |
| Three Mile Cross | SU706676 | 16 |
| Spencers Wood | SU707663 | 28 |
| Swallowfield, E of A33 | SU711646 | 60 |
| Highgrove Copse, Sw’field | SU 712635 | ? |
| 3 Mile X/Burghfield Rd | SU712678 | 10 |
| Risely, W of A33 | SU714628 | 6 |
| Three Mile Cross | SU715674 | 4 |
| Swallowfield Park | SU730650 | 22 |
| Arborfield-Shinfield A327 | cSU745676 | 36 |
| Farley Hill | SU746648 | c46 |
| Shepherds Hill, Woodley | SU755742? | 40/61 |
| Sonning | SU760755 | 9 |
| Lower Earley, Nth M4 | SU760698 | c12 |
| Sindlesham | SU775695 | 12 + 5 |
| Barkham | SU782671 | 20 |
| Barkham, Doles Hill/Bearwood Rd | SU783673 | 14 |
| Knowl Hill Landfill | SU815798 | 40 + 50 |
| Hurst | SU791728 | 60 |
| Rosehill | SU808828 | 54 |
| West Hurley, 1 of 2 | SU815833 | 30 |
| Hurley Research Institute | SU817834 | 17 |
| West Hurley | SU825835 | 6 |
| Hall Place, Burchetts Green | SU826818 | 100 |
| Prospect Hill, Burchetts Green | SU832831 | 10 |
| Shottesbrooke | SU843768 | 30 |
| Waltham St Lawrence | SU835768 | 20/26 |
| Sherlock Row | SU835740 | 11 |
| Allanbay Park | SU850731 | 65 |
| White Waltham | SU855775 | 20 |
| Tickleback Row | SU863730 | 40 |
| Pinkneys Green, M.head | SU865825 | 14 + 26 |
| Westbrook, nr Boxford | ? | ? |
| Nr Warfield Hall | SU865720 | c12 |
| Bray, Monkey Island | SU916788 | 20 |
| Sth of Shinfield | B3349? | ? |
| Woolhamton/Midgham | Nth of A4 ? | ? |
| Dorney Court (just in Bucks) | SU925790 | 15 |
| Windsor Great Park, Thames | SU984758 | 2 rookeries |