| 22/12/07 | Great Crested Grebe | Lower Farm Trout Lake | 3 | S A Graham |
15:30
| |
| 24/11/07 | Great Crested Grebe | Green Park | 1 | P Gipson |
| |
| 03/11/07 | Great Crested Grebe | Woolhampton GPs | 11 | S A Graham |
14:00
| Minimum count, possibly 15. |
| 20/10/07 | Great Crested Grebe | Thatcham Marsh | 6 | S A Graham |
15:30
| Thatcham Discovery center lake. |
| 11/09/07 | Great Crested Grebe | Moatlands GP, Theale GPs | 44 | R Crawford |
18:50
| The usual post-breeding gathering. |
| 26/08/07 | Great Crested Grebe | Lower Farm Trout Lake | 2 | S A Graham |
13:00
| 2ad + juv. |
| 19/08/07 | Great Crested Grebe | Moatlands GP, Theale GPs | 21 | S A Graham |
11:30
| |
| 19/08/07 | Great Crested Grebe | Main Pit, Theale GPs | 1 | S A Graham |
11:30
| Occupied nest on the south side of the island opposite the canal. |
| 06/08/07 | Great Crested Grebe | Sonning Lock, R. Thames, Sonning | 1 | J Crouch |
| |
| 30/07/07 | Great Crested Grebe | Woolhampton GPs | 1 | N Cleere |
08:00
| with smallish chick on back. |
| 27/07/07 | Great Crested Grebe | Whiteknights Lake, Reading | 3 | P Gipson |
19:20
| pr + 1yng. |
| 21/07/07 | Great Crested Grebe | Lower Farm Trout Lake | 5 | S A Graham |
14:00
| 5 ad. |
| 21/07/07 | Great Crested Grebe | Lower Farm GP | 4 | S A Graham |
14:00
| 2 ad+ 2 juv. Second breeding attempt. |
| 15/07/07 | Great Crested Grebe | Woolhampton GPs | 6 | S A Graham |
14:30
| 6 juv. Broods of 3, 2 and 1 on RP lake. |
| 08/07/07 | Great Crested Grebe | Woolhampton GPs | 14 | S A Graham |
10:35
| 11 ad + 3 juv. One occupied nest, broods of 1 & 2. |
| 01/07/07 | Great Crested Grebe | Cheapside | 5 | P Mannion |
| 2 adult, 3 imm. On the southern part of the Great Pond. |
| 23/06/07 | Great Crested Grebe | Lower Farm Trout Lake | 4 | S A Graham |
14:00
| |
| 23/06/07 | Great Crested Grebe | Lower Farm GP | 2 | S A Graham |
14:00
| ad + juv. One Juv. has survived. |
| 06/06/07 | Great Crested Grebe | Lower Farm Trout Lake | 3 | S A Graham |
14:45
| |
| 30/05/07 | Great Crested Grebe | Lavell's Lake, Dinton Pastures CP | 1 | J Beever |
13:00
| Still sitting on completely sodden nest in front of Sandford Lake Hide (Path flooded). |
| 25/05/07 | Great Crested Grebe | Moor Green Lakes | 4 | J Pearson |
14:30
| |
| 20/05/07 | Great Crested Grebe | Moor Green Lakes | 3 | J Pearson |
19:00
| |
| 19/05/07 | Great Crested Grebe | Lower Farm GP | 2 | S A Graham |
14:30
| ad + 1 juv. Three Juv. per hide log. |
| 18/05/07 | Great Crested Grebe | Lavell's Lake, Dinton Pastures CP | 4 | F J Cottington |
13:20
| family on Lavell's, def 2, possibly 3 young. |
| 15/05/07 | Great Crested Grebe | Lavell's Lake, Dinton Pastures CP | 2 | S C Smith |
| plus two chicks, maybe more. |
| 28/04/07 | Great Crested Grebe | Lower Farm GP | 2 | S A Graham |
14:30
| ad + juv. Juv. probably from Thatcham pits. |
| 27/04/07 | Great Crested Grebe | Whiteknights Lake, Reading | 5 | P Gipson |
19:00
| 3ad 2chks. Pr + 2 new chicks main lake, ad on middle lake. |
| 13/04/07 | Great Crested Grebe | Lavell's Lake, Dinton Pastures CP | 2 | J Crouch |
| |
| 09/04/07 | Great Crested Grebe | Thatcham Marsh | 20 | S A Graham |
13:30
| 15 + 5 juv. None of the Juvs' over 3 weeks old. |
| 21/03/07 | Great Crested Grebe | Lower Farm Trout Lake | 1 | S A Graham |
08:30
| |
| 21/03/07 | Great Crested Grebe | Lower Farm GP | 4 | S A Graham |
08:30
| |
| 14/03/07 | Great Crested Grebe | Bray GPs | 11 | D N Rimes |
12:30
| |
| 03/03/07 | Great Crested Grebe | Lower Farm GP | 2 | S A Graham |
15:00
| |
| 24/02/07 | Great Crested Grebe | Lower Farm GP | 2 | S A Graham |
14:00
| |
| 17/02/07 | Great Crested Grebe | Lower Farm Trout Lake | 1 | S A Graham |
15:30
| |
| 17/02/07 | Great Crested Grebe | Lower Farm GP | 1 | S A Graham |
15:00
| |
| 10/02/07 | Great Crested Grebe | Moor Green Lakes | 7 | R Angus |
10:30
| |
| 10/02/07 | Great Crested Grebe | Lower Farm Trout Lake | 2 | S A Graham |
15:00
| |
| 10/02/07 | Great Crested Grebe | Lower Farm GP | 1 | S A Graham |
15:00
| |
| 03/02/07 | Great Crested Grebe | Lower Farm Trout Lake | 1 | S A Graham |
15:30
| |
| 03/02/07 | Great Crested Grebe | Lower Farm GP | 3 | S A Graham |
15:30
| 2 ad & f/w. |
| 03/02/07 | Great Crested Grebe | Bray GPs | 2 | S A Graham |
14:30
| BBOWT Pit. |
| 03/02/07 | Great Crested Grebe | Bray GPs | 29 | S A Graham |
14:30
| |
| 02/02/07 | Great Crested Grebe | Caversham | 1 | S Hughes |
| stream between Veiw Island and Hills meadow on nest containing at least 3 eggs. |
| 27/01/07 | Great Crested Grebe | Lower Farm GP | 2 | S A Graham |
14:30
| |
| 23/01/07 | Great Crested Grebe | Lower Farm GP | 3 | N Cleere |
11:00
| |
| 20/01/07 | Great Crested Grebe | Lower Farm GP | 1 | S A Graham |
13:00
| |
| 13/01/07 | Great Crested Grebe | Lower Farm GP | 2 | N Cleere |
10:00
| with Jan Legg & Ian Weston. |
| 13/01/07 | Great Crested Grebe | Lower Farm Trout Lake | 2 | N Cleere |
11:00
| |
| 11/01/07 | Great Crested Grebe | Lower Farm GP | 2 | N Cleere |
09:30
| differently plumaged birds. Have been present all week during many hours of observation with no sign of any other grebe species !!!!!! |
| 10/01/07 | Great Crested Grebe | Lower Farm Trout Lake | 1 | S A Graham |
08:20
| |
| 10/01/07 | Great Crested Grebe | Lower Farm GP | 2 | S A Graham |
08:20
| |
| 01/01/07 | Great Crested Grebe | Thatcham GPs | 8 | S A Graham |
12:00
| Including 5 on the main lake opposite the Discovery center. |
| 01/01/07 | Great Crested Grebe | Lower Farm Trout Lake | 2 | S A Graham |
11:30
| |
| 01/01/07 | Great Crested Grebe | Lower Farm GP | 1 | S A Graham |
11:30
| |