| 19/09/21 | Cetti's Warbler | New workings, Moor Green Lakes | 1 | P Bright-Thomas |
15:52
| Along blackwater calling and seen in typha 50m E if water treatment works. My first for site. Please only view from the public footpath. |
| 19/09/21 | Cetti's Warbler | Eton Wick | 2 | K P Duncan |
| along Roundmoor Ditch. |
| 18/09/21 | Cetti's Warbler | Fobney Meadow | 1 | M F Walford |
12:17
| |
| 18/09/21 | Cetti's Warbler | Hosehill Lake, Theale GPs | 2 | S A Graham |
09:00
| |
| 17/09/21 | Cetti's Warbler | Fobney Island | 1 | J Lerpiniere |
15:39
| On south edge of island. SU701710. |
| 14/09/21 | Cetti's Warbler | Eton Wick | 2 | B Crathorne |
15:30
| |
| 14/09/21 | Cetti's Warbler | Dorney Wetlands, Jubilee River | 2 | B Crathorne |
15:00
| |
| 12/09/21 | Cetti's Warbler | Eton Wick | 2 | B Crathorne |
12:00
| Singing. |
| 12/09/21 | Cetti's Warbler | Dorney Wetlands, Jubilee River | 2 | B Crathorne |
11:30
| Singing. |
| 11/09/21 | Cetti's Warbler | Hosehill Lake, Theale GPs | 1 | K E Moore |
13:30
| By the gull viewing platform. |