Week: Saturday 15th August - Friday 21st August 2026.

Spotted Redshank was new for the year and there was a good supporting cast of other waders including early Knot and Wood & Green Sandpipers.
Spotted Redshank takes the cumulative year list to date up to 204 (LISTS) - subject to the appropriate records being accepted by the British and Welsh Birds Rarity Committees as applicable.  

Wildfowl:

Mute Swan

39, at Llyn Llywenan (15th).

Mandarin Duck

1, at Llyn Llywenan (15th).

Gadwall

4, at Llyn Llywenan (15th).

Teal

6, at Llyn Llywenan (15th).

Waders:

Oystercatcher

326, at the Alaw estuary (18th).

Golden Plover

6+, on Tyn Llan fields, Cemlyn (16th).

Ringed Plover

21, at Traeth Dulas (16th).

Whimbrel

1, at Malltraeth cob pool (19th).

Curlew

62, at Traeth Dulas (17th).

39, at the Alaw estuary (18th).

Bar-tailed Godwit

7, at Cemlyn (16th).

4, at the Alaw estuary (18th).

Black-tailed Godwit

7, at the Cefni reservoir (19th).

Snipe

Up to 2, at Llyn Llywenan (2 on 15th, 1 on 18th).

7, at the Cefni reservoir (19th).

Common Sandpiper

1, at Valley tidal doors (21st).

Green Sandpiper

3, at the Cefni reservoir (19th).

Wood Sandpiper

1, at Malltraeth cob pool (19th).

Spotted Redshank

1, at Malltraeth cob pool (19th).

Redshank

28, at the Alaw estuary (18th).

Greenshank

Up to 4, at Llyn Llywenan (4 on 18th, 3 on 15th).

9, on the old brickworks pool at Traeth Dulas (17th).

14, at the Alaw estuary (18th).

1, at Malltraeth cob pool (19th).

Knot

2, at the Alaw estuary (18th).

2, at Malltraeth cob pool (19th - 20th).

Ruff

1, at the Cefni reservoir (19th).

Dunlin

22, at Traeth Dulas (16th).

13, at the Alaw estuary (18th).

50, at Malltraeth cob pool (20th).

Seabirds and gulls:

Sandwich Tern

c. 250, passed through Dulas Bay in c. 2 hrs (20th).

Grebes & Divers:

Little Grebe

8, at Llyn Llywenan (15th).

Herons, Egrets & allies:

Great Egret

2, at Llyn Alaw (15th).

1, at Llyn Llywenan (18th).

4, at the Cefni reservoir (19th).

Raptors:

Osprey

1, over the Inland Sea (15th).

Marsh Harrier

1, female type at Newborough Warren (18th).

1, at Llyn Llywenan (18th).

Red Kite

1, at Gadfa (15th).

1, at Llyn Llywenan (18th).

1, over Talwrn (20th).

Passerines & others:

Stock Dove

2, at Llyn Llywenan (15h).

Kingfisher

1, on a wire over inlet to the old brickworks pool at Traeth Dulas (17th).

Ring-necked Parakeet

1, at Fern Hill, Benllech (17th).

Hooded x Carrion Crow (hybrid)

1, at Amlwch Port near the former Octel site (17th).

Sedge Warbler

1, at Llyn Llywenan (15th).

Cetti’s Warbler

1, at Llyn Llywenan (18th).

Willow Warbler

5+, at Wylfa woods (18th).

Chiffchaff

7+, at Wylfa woods (18th).

Blackcap

4+, at Wylfa woods (18th).

Lesser Whitethroat

1, at Wylfa woods (19th).

Spotted Flycatcher

2+, at Wylfa woods (18th).

Siskin

3, at a garden feeder at Talwrn (19th).

Week: Saturday 8th August - Friday 14th August 2026.

Honey Buzzard is a rare - scarce migrant with just 11 records for the island, so one seen by a fortunate observer at Pont Marquis near Malltraeth was noteworthy.

Green Sandpipers were reported from multiple sites, while a marked increase in the number of Snipe reported was something of a harbinger of autumn not being too far away. Wood Sandpiper and Little Stint were further indications of the passage of waders continuing to build.

Honey Buzzard takes the cumulative year list to date up to 203 (LISTS) - subject to the appropriate records being accepted by the British and Welsh Birds Rarity Committees as applicable.  

Wildfowl:

Mute Swan

62, at the Cefni reservoir (10th).

40, at Llyn Llywenan (13th).

Mandarin Duck

1, female at Llyn Llywenan (11th).

Red-breasted Merganser

4, at Traeth Dulas (8th, 10th) - 1 female and 3 well grown chicks.

Shoveler

3, duck and 2 chicks at Cemlyn (10th).

4, at Llyn Llywenan (13th).

Gadwall

3, at Llyn Llywenan (13th).

Wigeon

1, at the Inland Sea (13th).

Teal

1, at Llyn Llywenan (13th).

Waders:

Golden Plover

Up to 9, at Cemlyn (9 on 12th, 3 on 13th, 1 on 10th).

Ringed Plover

12, at Traeth Dulas (12th).

10, at Traeth Bychan (13th).

Whimbrel

2, at Cemlyn (10th).

1, at Traeth Bychan (13th).

1, at Traeth Dulas (14th).

1, at Moelfre (14th).

Curlew

77, at Traeth Dulas (8th).

2, at Traeth Bychan (13th).

Bar-tailed Godwit

1, at Malltraeth cob pool (11th).

Black-tailed Godwit

5, at Malltraeth cob pool (11th).

7, at the Alaw estuary (13th).

Snipe

2, at Cemlyn (13th).

7, at the Alaw estuary (13th).

1, at the Inland Sea (13th).

1, at Llyn Llywenan (13th).

11, at Garreglwyd, Rhoscolyn (14th).

Common Sandpiper

1, along the river at Traeth Dulas (8th).

1, at Valley tidal doors (10th).

Up to 3, at Cemlyn (3 on 13th, 1 on 10th).

Up to 2, at the Alaw estuary (2 on 13th & 14th, 1 on 10th).

Green Sandpiper

2, at the Cefni reservoir (8th).

1, along the river at Traeth Dulas (8th).

Up to 2, at the Alaw estuary (2 on 14th, 1 on 10th & 13th).

1, at Cemlyn (12th-13th).

2, at Llyn Llywenan (14th).

1, heard over Garreglwyd, Rhoscolyn (14th).

Wood Sandpiper

1, at the Alaw estuary (10th).

Redshank

6, on the old brickworks pool at Traeth Dulas (8th).

Up to 25, at the Alaw estuary (25 on 13th, 22 on 14th, 15 on 10th).

Greenshank

8, on the river and then on the old brickworks pool at Traeth Dulas (8th).

Up to 14, at the Alaw estuary (14 on 13th, 13 on 14th, 7 on 10th).

Up to 4, at Cemlyn (4 on 13th, 3 on 12th).

1, at Garreglwyd, Rhoscolyn (14th).

Turnstone

1, at Traeth Bychan (13th).

Ruff

2, at Cors Ddyga (8th).

Sanderling

2, at Traeth Bychan (13th).

Dunlin

Up to 12, at Traeth Dulas (12 on 12th, 2 on 8th).

2, at Traeth Bychan (13th).

4, at the Alaw estuary (14th)

Little Stint

Up to 2, at Cemlyn (2 on 10th, 1 on 11th & 12th).

Seabirds and gulls:

Mediterranean Gull

1, 2nd calendar year at Traeth Dulas (8th).

Common Gull

1, at Traeth Dulas (8th).

Grebes & Divers:

Little Grebe

12, at the Cefni reservoir (10th).

Herons, Egrets & allies:

Quail

1, calling from a field north of Gwalchmai (9th).

Little Egret

14, at the Cefni reservoir (8th).

Great Egret

3, at the Cefni reservoir (10th).

Water Rail

1, at Malltraeth cob pool (11th).

Raptors:

Short-eared Owl

1, seen at Pont Marquis and flew off in the direction of Cors Ddyga (9th).

Osprey

1, was seen to catch a trout at the Cefni reservoir - west end(8th).

1, over the Inland Sea (10th, 12th).

Honey Buzzard

1, seen flying over Pont Marquis, near Malltraeth (9th).

Marsh Harrier

1, at Llyn Llywenan (11th, 13th).

Red Kite

1, at Llyn Llywenan (11th, 13th).

1, at Gadfa (13th).

Passerines & others:

Cuckoo

1, at Cors Erddreiniog (13th).

1, at Silver Bay, Rhoscolyn (13th).

Kingfisher

1, at the Alaw estuary (10th, 14th).

Grasshopper Warbler

1, seen at the Cemlyn (10th, 14th).

Spotted Flycatcher

2, at Rhoscolyn (14th).

Tree Pipit

2, at Rhoscolyn (14th).

Week: Saturday 1st August - Friday 7th August 2026.

After several weeks of no movement on the year list, it was good to see the total tick up 1 courtesy of the first record of the year of Mandarin Duck with 2 at Cors Ddyga and 1 at Llyn Llywenan.  Mandarin Duck are known to breed on the mainland at sites including the Afon Glaslyn and the Afon Conwy.  The latter site delivered a count of 22 birds at Trefriw (7th), so it is not surprising that we get the occasional record.  
While Common Redstart can also be found reasonably easily in suitable habitat on the mainland, it is still a scarce migrant on the island.  A male at Rhoscolyn (7th) was just the 2nd record for the year.
Mandarin Duck takes the cumulative year list to date up to 202 (LISTS) - subject to the appropriate records being accepted by the British and Welsh Birds Rarity Committees as applicable.  

Wildfowl:

Mute Swan

34, at Llyn Llywenan (3rd).

16, at Llyn Alaw (3rd).

Up to 70, at the Cefni reservoir (70 on 7th - 63 on eastern basis & 7 on western basin, 58 on 5th).

Mandarin Duck

2, at Cors Ddyga (2nd).

1, at Llyn Llywenan (2nd).

Red-breasted Merganser

4, at Traeth Dulas (5th & 6th) - 1 female and 3 well grown chicks.

Goosander

31, redheads in a creche feeding mid-Strait from Moel y Don (6th).

Tufted Duck

100+, at Llyn Alaw (3rd).

25, at the Cefni reservoir (5th & 7th).

Pochard

1, at Llyn Alaw (3rd).

Shoveler

5, at the Cefni reservoir (7th).

Gadwall

Up to 52, at the Cefni reservoir (52 on 5th, c 45 on 7th).

Wigeon

Up to 13, at the Cefni reservoir (13 on 5th, 1 on 7th).

Teal

1, at Llyn Llywenan (5th).

10, at the Cefni reservoir (7th).

Coot

Up to 271, at the Cefni reservoir (271 on 5th, c 60 on 7th).

Moorhen

Up to 30, at the Cefni reservoir (30 on 7th, 18 on 5th).

Waders:

Oystercatcher

35, at Moel y Don (6th).

Golden Plover

3+, at Tyn Llan, Cemlyn (2nd).

Ringed Plover

Up to 28, at Traeth Dulas (28 on 5th, 3 on 4th).

Lapwing

Up to 24, at the Cefni reservoir (24 on 7th, 15 on 5th).

Curlew

16, at Llyn Alaw (3rd).

15, at Moel y Don (6th).

Snipe

1, at Malltraeth cob pool (1st).

Common Sandpiper

6, at Malltraeth cob pool and estuary (1st).

8, at Moel y Don (2nd).

2, at the Alaw estuary (6th).

Green Sandpiper

1, at the Alaw estuary (1st).

2, at Cors Ddyga (2nd).

Redshank

Up to 19, at the Alaw estuary (19 on 1st, 3 on 2nd, 1 on 6th).

5, on the old brickworks pool at Traeth Dulas (5th).

Greenshank

Up to 10, at the Alaw estuary (10 on 1st & 2nd, 3 on 6th).

8, on the old brickworks pool at Traeth Dulas (4th).

Ruff

2, at Cors Ddyga (6th).

Dunlin

62, at Malltraeth cob pool and estuary (1st).

1, at Traeth Dulas (5th).

Seabirds and gulls:

Mediterranean Gull

1, juvenile at Cemlyn (1st).

Grebes & Divers:

Little Grebe

9, at Llyn Llywenan (3rd).

Up to 21, at the Cefni reservoir (21 on 7th, 15 on 5th).

Great-crested Grebe

2, at the Cefni reservoir (5th).

Herons, Egrets & allies:

Quail

Up to 2, at barley field between Hen Borth and Cemlyn (2 on 1st, 1 on 2nd & 3rd).

1, between Llanrhwydrys and Cemlyn (2nd).

1, south of Cemlyn off the road towards the former jam factory (2nd).

1, at Tyddyn-Gele (2nd).

Little Egret

Up to 22, at the Cefni reservoir (22 on 7th - 12 at western end, 10 at eastern, 14 on 5th).

Great Egret

1, at Cemlyn (1st).

3, at Cors Ddyga (2nd).

Up to 4, at the Cefni reservoir (4 on 5th, 2 on 7th).

1, at Llyn Alaw (5th) - dam end.

Raptors:

Marsh Harrier

1, juvenile at Cemlyn (1st).

1, at Garreglwyd, Rhoscolyn (7th).

Red Kite

1, over fields north of Llechylched (6th).

1, at Rhoscolyn (7th).

Passerines & others:

Kingfisher

1, at the Alaw estuary (2nd).

Hooded Crow

1, at The Range, Holyhead (3rd).

Hooded x Carrion Crow (hybrid)

1, at Traeth Dulas (6th).

Reed Warbler

1, at Llyn Llywenan (3rd).

Common Redstart

1, male on footpath top rear of the church, Rhoscolyn (7th).

Northern Wheatear

1, at Cable Bay / Porth Trecastell, near Llanfaelog (2nd).