Monday, 31 August 2026

Northwesterly force 5 winds generated rough conditions at Sea State 5, accompanied by very good visibility and a top temperature of 17°C.

An exciting day of seawatching comprised much of the birding for the day with all the staff and students lining up on the terrace to watch seabirds fly past the West Coast. Three Sooty Shearwaters provided some early highlights with the first two going through within half an hour after sunrise. Skuas also provided a lot of interest throughout the morning with a variety of different ages and morphs of Arctic Skuas moving through and two Great Skuas, the second of which flew in to the West Coast before circling up over the coast providing good views for the students. Much of the passage was comprised of southward moving terns with a total of six species recorded during through the morning. The highlight was a Black Tern moving south in with a mixed flock of Sandwich and Arctic tern off the West Coast and a juvenile Roseate Tern off the North End. Counts of other species totalled 189 Sandwich Terns, 44 Arctic Terns, 37 Common Terns, eight Commic Terns, and a Little Tern off the West Coast. Headlining the gulls was a juvenile Sabine's Gull passing the West Coast and six Little Gulls also off the West Coast. Other gull counts included two Yellow-legged Gulls, 663 Kittiwakes, 15 Lesser Black-backed Gulls, 15 Herring Gulls, 11 Great Black-backed Gulls, four Black-headed Gulls and two Mediterranean Gulls. Other seabirds passing offshore included 208 Manx Shearwaters four Grey Phalaropes off the North End, 373 Gannets, 31 Common Scoters, 26 Shags, 16 Razorbills, 13 Fulmars, four Cormorants, two Puffins, and a single Guillemot.

The most notable landbird sighting came from a Quail flushed in the lowlands during the afternoon. Wader and wildfowl passage along the coast produced four Purple Sandpipers on the Narrows, 17 Turnstones, 13 Redshanks, nine Whimbrels, six Curlews, six Dunlin, five Ringed Plovers, a single Lapwing, and a Greenshank. Passerine numbers were generally low but were bolstered in the afternoon by a Whinchat in the lowlands, a Skylark passing over the lowlands, 12 Robins, six Wheatears, five Willow Warblers, one Sedge Warbler, two Chiffchaffs, a Blackcap and four Stonechats. Overhead hirundines, wagtails, and pipits included 25 Swallows, 10 House Martins, 23 White Wagtails, 20 Rock Pipits, and 16 Meadow Pipits

Whinchat (c) Ezra Sherwell

Cetacean monitoring off the West Coast and North End yielded seven Common Dolphins and three Risso's Dolphins. Invertebrates started to show later in the day as the wind died off with two female Red-veined Darters, 15 Migrant Hawkers, 283 Rush Veneers, 31 Common Grass Veneers, 22 Painted Ladies, 14 Silver Ys, eight Red Admirals, four Humming-bird Hawk-moths and a Grayling seen. Six Slow Worms were also noted under the refugia at the Observatory. 

In the afternoon the students were taken up the mountain to assist with finishing off the final square of the Manx Shearwater census, providing some useful expereince conducting species monitoring as part of a long-term project. 

Students helping out with the Manx Shearwater census on the mountain (c) Joel Tragen


Sunday, 30 August 2026

Southerly force 4 winds were accompanied by Sea State 3, moderate visibility, persistent showers throughout the day, and a top temperature of 19°C.

Overhead visible migration picked up despite the wet conditions, headlined by a large surge of wagtails and pipits. Alba wagtails totaled at least 145 individuals, including 100 moving south (70 at South End and 30 at Narrows), 34 confirmed White Wagtails (including 13 moving south at South End and nine south over North End), and a single Pied Wagtail at Solfach. These were joined by nine Grey Wagtails, 25 Meadow Pipits (nine heading south along the West Coast), two Tree Pipits, and 14 Rock Pipits. Hirundine passage produced 64 Swallows and two House Martins. Grounded passerines and songbirds included 11 Willow Warblers, three Chiffchaffs, three Blackcaps, a Whitethroat on the Mountain, 19 Robins (three trapped and ringed), 20 Wrens (two trapped), 18 Linnets, 12 Woodpigeons, eight Wheatears and six Stonechats

Seabird counting was productive, highlighted by two Little Terns heading along the West Coast alongside 63 Sandwich Terns and four Arctic Terns. Offshore passage also produced 98 Gannets, 37 Manx Shearwaters, 35 Common Scoters off the West Coast, 20 Shags, nine Razorbills, seven Fulmars, and seven Cormorants. Coastal waders were well represented with 55 Oystercatchers, 40 Turnstones, 37 Curlews, 17 Redshanks, 12 Ringed Plovers, 10 Dunlin, three Whimbrels, a single southbound Black-tailed Godwit off the West Coast, a Greenshank at Narrows, and a Sanderling at Carreg yr Henwy. Gulls included 18 Kittiwakes, six Black-headed Gulls, three Mediterranean Gulls, and a Common Gull.

Kittiwake in Solfach (c) Ezra Sherwell

Sandwich Tern in Solfach (c) Ezra Sherwell

Marine mammal activity off the West Coast and South End included 10 Common Dolphins and two Risso's Dolphins. Invertebrate records despite the showers included five Humming-bird Hawk-moths, five Migrant Hawkers, two Common Blues and two Speckled Woods.