| 28/04/24 | Swallow | Foxcote Res | 200 | C Coppock |
14:59
| Ball-park figure--the lake was covered in them. With a sprinkling of Sand & House martins and Swifts. |
| 28/04/24 | Swallow | Hulcott | 94 | T Wallen |
11:15
| Near Hulcott. With MSW. Feeding over a flood. |
| 28/04/24 | Swallow | Logistica Flood, Milton Keynes | 30 | L Evans |
10:45
| |
| 27/04/24 | Swallow | Stowe | 8 | M S Harvey |
10:45
| |
| 28/04/24 | Swallow | Leckhampstead Wharf | 35 | R S Hill |
16:00
| |
| 28/04/24 | Swallow | Shabbington | 17 | N Marriner |
08:00
| |
| 28/04/24 | Swallow | Chalfont St Giles | 20 | R G Bibby |
12:45
| Mill lane Flood. |
| 28/04/24 | Swallow | Linford Reserve, Linford GPs | 50 | M Haberfield |
11:45
| In mixed flock of house and sand martins low over the lake. Some birds perching in reeds on the bund for some respite. |
| 28/04/24 | Swallow | Foxcote Res | 30 | P Gomersall |
10:05
| ad. Feeding over res:. |
| 24/04/24 | Swallow | Gallows Bridge Farm, Gallows Bridge | 1 | J C Seabrook |
12:30
| |
| 27/04/24 | Swallow | Linford Reserve, Linford GPs | 5 | J R Chalk |
11:30
| |
| 27/04/24 | Swallow | Marsh Gibbon | 1 | L Russell |
20:02
| |
| 27/04/24 | Swallow | Little Marlow GP | 80 | A D Bassett |
08:30
| Approx. |
| 27/04/24 | Swallow | Calvert Sailing Lake, Calvert | 150 | T Watts |
16:55
| Estimate over both lakes, most in afternoon. |
| 27/04/24 | Swallow | Linford Reserve, Linford GPs | 3 | M Haberfield |
16:28
| |
| 27/04/24 | Swallow | Foscote Manor, Foxcote Res | 64 | L Evans |
11:49
| |
| 27/04/24 | Swallow | Willen Lake North, Willen Lakes | 50 | R D Andrews |
14:30
| Approx. |
| 27/04/24 | Swallow | Linford Reserve, Linford GPs | 1 | M Haberfield |
15:29
| |
| 27/04/24 | Swallow | Amersham Flood Meadows | 20 | R G Bibby |
14:46
| |
| 27/04/24 | Swallow | College Lake | 12 | A C Bayliss |
| |
| 27/04/24 | Swallow | Stony Stratford NR, Stony Stratford | 1 | B Tunnicliffe |
13:52
| |
| 27/04/24 | Swallow | Chalfont St Giles | 1 | L P Quy |
12:11
| SU982957. |
| 27/04/24 | Swallow | Aylesbury STW | 30 | P Watts |
10:48
| At least. |
| 27/04/24 | Swallow | Little Marlow GP | 1 | L P Quy |
09:15
| Lots. SU877874. |
| 27/04/24 | Swallow | Foxcote Res | 150 | P Gibbs |
09:09
| |
| 27/04/24 | Swallow | Calvert Sailing Lake, Calvert | 10 | P Watts |
09:07
| |
| 27/04/24 | Swallow | Calvert BBOWT Lake, Calvert | 41 | P Watts |
08:59
| |
| 27/04/24 | Swallow | Willen Lake North, Willen Lakes | 3 | C Shepherd |
08:00
| |
| 22/04/24 | Swallow | Chalfont St Giles | 20 | M Milne |
18:32
| C.20. Probably more. SU987942. |
| 23/04/24 | Swallow | Linford Reserve, Linford GPs | 1 | M S Harvey |
17:30
| |
| 26/04/24 | Swallow | Foxcote Res | 8 | P Gibbs |
08:17
| |
| 25/04/24 | Swallow | Rowsham | 30 | M Wallen |
18:30
| Between Rowsham and Hulcott. |
| 25/04/24 | Swallow | Weston Turville Reservoir | 51 | M Wallen |
17:30
| |
| 24/04/24 | Swallow | Hulcott | 46 | M Wallen |
18:30
| Nr Hulcott. |
| 25/04/24 | Swallow | Chalfont St Giles | 50 | L Evans |
16:00
| Over the Mill Lane flood. |
| 25/04/24 | Swallow | Amersham Flood Meadows | 10 | L Evans |
15:00
| 10 flew through. |
| 25/04/24 | Swallow | Walton Lake, Milton Keynes | 27 | M S Hunt |
14:15
| Over together N/E. |
| 25/04/24 | Swallow | Amersham Flood Meadows | 17 | P Watts |
15:23
| Through. |
| 25/04/24 | Swallow | Foxcote Res | 10 | M S Hunt |
09:15
| |
| 24/04/24 | Swallow | Little Marlow GP | 30 | G Smith |
10:31
| |
| 24/04/24 | Swallow | Foxcote Res | 40 | R S Hill |
09:45
| |
| 23/04/24 | Swallow | Waddesdon | 1 | O Davies |
11:55
| ad. Feeding over field. My first of the season. SP735168. |
| 23/04/24 | Swallow | Calvert Sailing Lake, Calvert | 32 | T Watts |
20:28
| |
| 23/04/24 | Swallow | Linford Reserve, Linford GPs | 2 | R S Hill |
13:20
| |
| 23/04/24 | Swallow | Foxcote Res | 30 | P Gibbs |
11:47
| |
| 23/04/24 | Swallow | Caldecotte Lake | 50 | P Gibbs |
11:09
| |
| 23/04/24 | Swallow | Little Marlow GP | 60 | A D Bassett |
07:00
| Approx - most numerous hirundine this morning. |
| 22/04/24 | Swallow | Dorney Lake, Dorney | 20 | D L Cleal |
14:00
| |
| 22/04/24 | Swallow | Dorney Common, Dorney | 12 | D L Cleal |
13:30
| |
| 22/04/24 | Swallow | Chalfont St Giles | 40 | L Evans |
17:40
| |
| 22/04/24 | Swallow | Chalfont St Giles | 12 | L P Quy |
17:28
| mixed. Just flown through. SU989943. |
| 22/04/24 | Swallow | Foxcote Res | 30 | J Rowley |
16:15
| |
| 22/04/24 | Swallow | Foxcote Res | 21 | P Gibbs |
15:07
| |
| 22/04/24 | Swallow | Little Marlow GP | 20 | A D Bassett |
06:30
| Approx. |
| 21/04/24 | Swallow | Linford Reserve, Linford GPs | 2 | J R Chalk |
14:00
| |
| 21/04/24 | Swallow | Little Marlow GP | 10 | A D Bassett |
10:00
| Approx. |
| 21/04/24 | Swallow | Foxcote Res | 10 | P Gomersall |
09:30
| ad. Hawking over res:. |
| 20/04/24 | Swallow | Amersham Flood Meadows | 10 | R G Bibby |
22:32
| |
| 20/04/24 | Swallow | Fulmer Lake, Fulmer | 2 | M Milne |
09:45
| |
| 14/04/24 | Swallow | Fulmer Lake, Fulmer | 2 | M Milne |
09:30
| |
| 20/04/24 | Swallow | College Lake | 1 | A C Bayliss |
| |
| 20/04/24 | Swallow | Foxcote Res | 2 | P Gibbs |
10:40
| |
| 19/04/24 | Swallow | Lodge Hill | 3 | N Marriner |
07:30
| |
| 19/04/24 | Swallow | Foxcote Res | 30 | P Gibbs |
09:33
| Mixed hirundine flock still present, few more Swallow than earlier. |
| 19/04/24 | Swallow | Foxcote Res | 20 | R S Hill |
08:00
| |
| 18/04/24 | Swallow | Dorney | 2 | L P Quy |
10:50
| pair. |
| 18/04/24 | Swallow | Little Marlow GP | 3 | A D Bassett |
07:00
| |
| 18/04/24 | Swallow | Little Marlow GP | 1 | L P Quy |
08:42
| |
| 17/04/24 | Swallow | Amersham Flood Meadows | 6 | J N Sweeney |
17:30
| |
| 17/04/24 | Swallow | Little Marlow GP | 10 | A D Bassett |
07:00
| Approx. |
| 16/04/24 | Swallow | Hyde Lane | 25 | R A Fowles |
18:35
| |
| 16/04/24 | Swallow | Little Marlow GP | 1 | P Boult |
16:12
| |
| 16/04/24 | Swallow | Dorney Common, Dorney | 1 | D L Cleal |
14:34
| Just the one over the flood. |
| 16/04/24 | Swallow | Amersham Flood Meadows | 1 | P Watts |
13:00
| |
| 16/04/24 | Swallow | Chartridge | 2 | D K Holt |
13:22
| One chasing another, very agile and spectacular. SP929037. |
| 15/04/24 | Swallow | Dorney Common, Dorney | 2 | N Bass |
19:40
| Over flood. |
| 15/04/24 | Swallow | Tattenhoe, Milton Keynes | 1 | H Appleyard |
| Flying to the south/southwest along the Tattenhoe Valley Park. |
| 15/04/24 | Swallow | Willen Lake South, Willen Lakes | 3 | L Evans |
08:44
| |
| 15/04/24 | Swallow | Little Marlow GP | 12 | L P Quy |
12:30
| mixed. Circa 12. SU878872. |
| 15/04/24 | Swallow | Little Marlow GP | 10 | A D Bassett |
06:30
| Approx. |
| 14/04/24 | Swallow | Rowsham | 8 | M Wallen |
17:30
| Together, feeding, drinking and sitting together by the river Thame. |
| 14/04/24 | Swallow | Stowe | 3 | M S Hunt |
08:45
| |
| 13/04/24 | Swallow | Ivinghoe Beacon | 1 | A Horsley |
| heading west. |
| 13/04/24 | Swallow | Little Marlow - Emmetts Fields | 3 | A D Bassett |
07:00
| Over. |
| 13/04/24 | Swallow | Little Marlow GP | 5 | A D Bassett |
07:00
| Over. |
| 12/04/24 | Swallow | Wingrave | 1 | J Dowling |
12:00
| |
| 13/04/24 | Swallow | Loudwater | 2 | D Brown |
07:57
| First here this year. |
| 12/04/24 | Swallow | Buckingham | 1 | M S Hunt |
09:30
| |
| 12/04/24 | Swallow | Hyde Lane | 4 | R S Hill |
08:30
| |
| 11/04/24 | Swallow | Stony Stratford NR, Stony Stratford | 2 | M Levey |
16:14
| Over Passenham fields. SP782394. |
| 11/04/24 | Swallow | Buckingham | 1 | M S Hunt |
14:30
| Back at breeding site. |
| 10/04/24 | Swallow | Weston Turville Reservoir | 14 | S Richards |
19:00
| |
| 07/04/24 | Swallow | Fulmer Lake, Fulmer | 1 | M Milne |
13:30
| In with flock of hirundines. |
| 10/04/24 | Swallow | Linford Reserve, Linford GPs | 6 | M Haberfield |
17:56
| At least six over the lake: two flew around in front of warbler hide for a while. |
| 10/04/24 | Swallow | Foxcote Res | 4 | J Rowley |
12:00
| |
| 09/04/24 | Swallow | Weston Turville Reservoir | 6 | P Watts |
12:13
| |
| 08/04/24 | Swallow | Coombe Hill | 1 | D J Stone |
| Seen with Mike Collard. |
| 08/04/24 | Swallow | Rowsham | 3 | M Wallen |
08:30
| Back on breeding territory. |
| 07/04/24 | Swallow | Shardeloes | 1 | D Smith |
09:00
| |
| 09/04/24 | Swallow | Foxcote Res | 20 | C Coppock |
14:52
| Est. max. |
| 09/04/24 | Swallow | Little Marlow GP | 5 | T James |
14:55
| On east side. |
| 09/04/24 | Swallow | Little Marlow GP | 25 | J E Rose |
11:30
| Approx. In a mixed flock. |
| 09/04/24 | Swallow | Foxcote Res | 35 | R S Hill |
10:00
| |
| 08/04/24 | Swallow | Hyde Lane | 2 | M S Hunt |
15:00
| |
| 08/04/24 | Swallow | Gallows Bridge | 1 | T Watts |
14:48
| My first of year. |
| 08/04/24 | Swallow | Little Marlow GP | 2 | G Smith |
13:15
| |
| 07/04/24 | Swallow | Marsworth Reservoir (Bucks section) | 10 | S Moore |
19:37
| Feeding low over the horse paddock. |
| 07/04/24 | Swallow | Chesham Bois Mill | 1 | L Evans |
17:35
| |
| 07/04/24 | Swallow | Little Marlow GP | 10 | A D Bassett |
07:30
| At least in hirundine flock. |
| 07/04/24 | Swallow | Dorney Common, Dorney | 1 | D L Cleal |
14:27
| On the West Side, probably returning resident. |
| 07/04/24 | Swallow | Foxcote Res | 4 | P Gomersall |
10:15
| ad. Hawking over res:. |
| 06/04/24 | Swallow | Rowsham | 2 | M Wallen |
18:30
| Back on breeding territory. |
| 07/04/24 | Swallow | Little Marlow GP | 10 | J E Rose |
08:30
| Approx. Over the lake in very windy conditions. |
| 07/04/24 | Swallow | Weston Turville Reservoir | 1 | J C Seabrook |
09:15
| |
| 06/04/24 | Swallow | College Lake | 1 | A C Bayliss |
| Low over the meadow. |
| 06/04/24 | Swallow | Ravenstone, Ravenstone | 4 | M Norwood |
15:39
| |
| 06/04/24 | Swallow | Little Marlow GP | 2 | A D Bassett |
08:00
| |
| 06/04/24 | Swallow | Hyde Lane | 2 | R S Hill |
08:30
| One over south, plus one back on territory at Leckhampstead Wharf. |
| 06/04/24 | Swallow | Great Brickhill | 1 | R D Andrews |
08:25
| My first of the year here over meadows between Cuff and Ivy lanes. |
| 05/04/24 | Swallow | Hyde Lane | 5 | J R Chalk |
13:00
| |
| 05/04/24 | Swallow | Rowsham | 1 | M Wallen |
13:30
| First one for me this year. |
| 05/04/24 | Swallow | Weston Turville Reservoir | 3 | S Richards |
19:50
| |
| 05/04/24 | Swallow | Linford Reserve, Linford GPs | 2 | M Haberfield |
18:32
| In with group of sand martins flying over heronry. |
| 05/04/24 | Swallow | Dorney Lake, Dorney | 1 | D L Cleal |
16:48
| |
| 05/04/24 | Swallow | Kingston, Milton Keynes | 1 | R A Fowles |
16:18
| |
| 03/04/24 | Swallow | Little Marlow GP | 5 | A D Bassett |
07:30
| Through. |
| 03/04/24 | Swallow | Little Marlow GP | 2 | B Haines |
14:15
| at least two. SU878875. |
| 03/04/24 | Swallow | Amersham Flood Meadows | 2 | A Rowe |
16:21
| |
| 03/04/24 | Swallow | Fulmer Lake, Fulmer | 1 | P Martin |
08:41
| |
| 03/04/24 | Swallow | Foxcote Res | 1 | P Gibbs |
08:39
| Passing through. |
| 02/04/24 | Swallow | Dorney | 1 | K P Duncan |
14:45
| near old barn. Behaved like a returning bird rather than just passing through. |
| 01/04/24 | Swallow | Dorney Lake, Dorney | 3 | M Milne |
13:45
 | Three hirundines flew quickly past me at E end of the lake. Most likely Swallows. |
| 02/04/24 | Swallow | Little Marlow GP | 2 | A D Bassett |
07:00
| |
| 29/03/24 | Swallow | Little Marlow GP | 5 | A D Bassett |
09:00
| Approx moving through. |
| 01/04/24 | Swallow | Little Marlow GP | 2 | A D Bassett |
08:15
| A couple moving though. |
| 31/03/24 | Swallow | Fulmer Lake, Fulmer | 4 | M Milne |
11:42
| Three later joined by another over the main lake. Not bothered at all by the nearby Kestrel. |
| 31/03/24 | Swallow | Little Marlow GP | 2 | G Smith |
11:30
| |
| 30/03/24 | Swallow | Wapseys Wood WDS | 1 | J Edwards |
15:49
| |
| 30/03/24 | Swallow | Linford Reserve, Linford GPs | 1 | M Haberfield |
11:30
| Flew over and straight through. |
| 28/03/24 | Swallow | Little Marlow GP | 1 | L Evans |
13:03
| |
| 28/03/24 | Swallow | Little Marlow GP | 1 | A D Bassett |
07:00
| Over lake. |
| 28/03/24 | Swallow | Linford Reserve, Linford GPs | 1 | R S Hill |
08:00
| Over south. |
| 27/03/24 | Swallow | Lathbury | 1 | R Norris |
16:00
| Back on site. |
| 26/03/24 | Swallow | Flackwell Heath | 1 | D J Bevan |
09:00
| Single bird between crooked billet and barn flying over Sheepridge lane. |