| 18/09/21 | Mute Swan | Hosehill Lake, Theale GPs | 24 | S A Graham |
09:00
| Approx. |
| 17/09/21 | Mute Swan | Windsor Promenade | 274 | D Fuller |
20:16
| all ad except for 7 cygnets. a low count for this site. SU965771. |
| 13/09/21 | Mute Swan | Hosehill Lake, Theale GPs | 33 | K P Duncan |
18:30
| |
| 06/09/21 | Mute Swan | Whiteknights Lake, Reading | 9 | P Gipson |
19:15
| Pr + 5 juvs + intruding pair. Latter arrived 27th August. Remarkably, the intruding pair were only about 20 metres from the family party and the parents made no attempt to drive them away, having tolerated them on the lake for over a week. |
| 06/08/21 | Mute Swan | Purley on Thames, Reading | 2 | A Taylor |
13:00
| 1 adult, 1 juvenile. On lake west of Purley Hall. Only one cygnet seen on several visits since nest was vacated. |
| 27/07/21 | Mute Swan | Promenade River Thames Windsor | 304 | D Fuller |
19:36
| all ad apart from 3 cygnets. very few young. SU965772. |
| 17/07/21 | Mute Swan | Mill Pond, Bracknell | 7 | J E Warren |
| 2 adults with 5 cygnets. SU857682. |
| 03/07/21 | Mute Swan | Lower Farm GP | 1 | N Cleere |
10:00
| pair with 4 small cygnets. I suspect the first nesting attempt was a failure. |
| 24/06/21 | Mute Swan | Windsor Promenade | 386 | D Fuller |
13:07
| maily ad. only 5 cygnets seen a record count for me at this site. SU965771. |
| 24/06/21 | Mute Swan | Bagnor | 4 | B Lyle |
| 1 ad 3 cygnets. opp. Blackbird PH. |