| 29/12/17 | Cormorant | Grove Lake, Moor Green Lakes | 47 | J M Clark |
16:20
| |
| 28/12/17 | Cormorant | Grove Lake, Moor Green Lakes | 33 | M Hunt |
15:14
| Early count in the roost when flushed by two fishermen who went east to west along the north shore. |
| 17/12/17 | Cormorant | Bray GPs | 34 | S A Graham |
08:45
| |
| 12/12/17 | Cormorant | Eversley GP | 90 | J M Clark |
15:30
| 70 Grove, 20 JetSki. |
| 03/12/17 | Cormorant | Bray GP (New Workings), Bray GPs | 11 | D Cleal |
| |
| 02/12/17 | Cormorant | Grove Lake, Moor Green Lakes | 68 | M Hunt |
15:15
| Early count from the hide. |
| 29/11/17 | Cormorant | Grove Lake, Moor Green Lakes | 58 | J M Clark |
15:45
| at roost, plus c20 and 8 Little Egrets roosting on Hants side. |
| 28/08/17 | Cormorant | Dorney Wetlands, Jubilee River | 5 | K P Duncan |
| |
| 22/11/17 | Cormorant | Lower Farm GP | 48 | G Stewart |
16:00
| |
| 19/11/17 | Cormorant | Dinton Pastures CP | 32 | R Righelato |
| |
| 16/11/17 | Cormorant | Loddon Nature Reserve, Twyford GPs | 1 | S Brown |
| SU784756. |
| 10/11/17 | Cormorant | Grove Lake, Moor Green Lakes | 70 | J M Clark |
16:00
| at roost (approx); also 6 on jet ski pit on Hants side. |
| 06/11/17 | Cormorant | Lower Earley | 1 | D J Mills |
08:55
| Heading towards Dinton Pastures. |
| 30/10/17 | Cormorant | Grove Lake, Moor Green Lakes | 44 | M Hunt |
15:25
| Early count in the roost. |
| 28/10/17 | Cormorant | Woose Hill | 1 | P Bright-Thomas |
09:45
| ad. >SW. |
| 22/10/17 | Cormorant | Lower Farm GP | 25 | P E Hutchins |
| Present to late afternoon. |
| 14/10/17 | Cormorant | Whiteknights Lake, Reading | 8 | P Gipson |
15:35
| Fishing in concert in shallow water near Black Bridge. |
| 29/08/17 | Cormorant | Queen Mother Reservoir | 400 | D J Barker |
09:00
| No Shags. TQ005769. Key holders only. |
| 27/08/17 | Cormorant | Queen Mother Reservoir | 400 | P J Newbound |
08:00
| Key holders only. |
| 13/08/17 | Cormorant | Woose Hill | 2 | P Bright-Thomas |
12:00
| High W. |
| 07/08/17 | Cormorant | Queen Mother Reservoir | 600 | P J Newbound |
10:20
| Minimum. Key holders only. |
| 06/08/17 | Cormorant | Queen Mother Reservoir | 110 | P J Newbound |
07:00
| Key holders only. |
| 03/08/17 | Cormorant | Queen Mother Reservoir | 700 | P J Newbound |
08:00
| minimum. Key holders only. |
| 30/07/17 | Cormorant | Lavell's Lake, Dinton Pastures CP | 1 | G Turner |
07:00
| Flew over, then turned to go to sandford. |
| 26/07/17 | Cormorant | Queen Mother Reservoir | 485 | M F Walford |
| per DJB. Key holders only. |
| 21/07/17 | Cormorant | Hosehill Lake, Theale GPs | 32 | R Crawford |
07:45
| |
| 16/07/17 | Cormorant | Queen Mother Reservoir | 200 | P J Newbound |
08:00
| Key holders only. |
| 16/07/17 | Cormorant | Hosehill Lake, Theale GPs | 15 | S A Graham |
07:42
| |
| 12/07/17 | Cormorant | Lower Farm GP | 21 | G Stewart |
15:00
| |
| 14/06/17 | Cormorant | Lower Farm GP | 12 | P E Hutchins |
| Present early evening. |
| 28/04/17 | Cormorant | Purley on Thames, Reading | 1 | M J Smith |
| Single bird remains on Thames by small marina. |
| 08/03/17 | Cormorant | Grove Lake, Moor Green Lakes | 60 | J M Clark |
18:00
| |
| 19/02/17 | Cormorant | Ascot, Mill Ride | 1 | S D Abbott |
15:00
| Over north. SU904698. |
| 07/02/17 | Cormorant | Odney Club, Cookham | 1 | S M Meads |
10:00
| Fishing in river by odney club.First time i have seen this here. |
| 04/02/17 | Cormorant | Grove Lake, Moor Green Lakes | 40 | J M Clark |
16:45
| approx., fewer than usual, but at least 30 roosting on Hants side of river with 3-4 Little Egrets. |
| 20/01/17 | Cormorant | Grove Lake, Moor Green Lakes | 67 | J M Clark |
16:30
| roost. |
| 18/01/17 | Cormorant | Grove Lake, Moor Green Lakes | 68 | J M Clark |
16:15
| roosting + 16 on Hants side. |