Light Easterly force 3 winds provided calm water at Sea State 1 and good visibility, accompanied by afternoon rain showers and a top temperature of 17°C.

Passerines activity across the island was varied with hirundines and wagtails showing some movement with 130 Swallows, 36 House Martins, three Sand Martins, 30 White Wagtails, three Alba Wagtails, and a Grey Wagtail recorded. Other passerine sightings included 35 Linnets, 17 Woodpigeons, 13 Willow Warblers, six Chiffchaffs, three Whitethroats, two Reed Warblers, a Garden Warbler, a Blackcap, a Redstart at Plas, four Spotted Flycatchers, 13 Robins, 11 Rock Pipits, five Meadow Pipits, four Wheatears, three Stonechats, two Swifts and a Chaffinch.

Seabird movement featured 776 Manx Shearwaters (773 off the West Coast), 26 Gannets, 36 Kittiwakes, 16 Black-headed Gulls, eight Mediterranean Gulls, 11 Shags, four Fulmars, two Cormorants, a Sandwich Tern, and a Razorbill. Coastal bird sightings included 30 Oystercatchers, 16 Curlews, eight Turnstones, six Grey Herons, five Dunlin, five Ringed Plovers, four Whimbrels, four Common Scoters off the West Coast, two Common Sandpipers, two Redshanks, a Greenshank, a Purple Sandpiper at Carreg yr Honwy, and a single Canada Goose off the South End. Raptors in the area included a Sparrowhawk, a Buzzard, a female Kestrel, and a Peregrine. 

Marine mammals were highlighted by 15 Risso's Dolphins (12 off the West Coast including three calves, and three off Henllwyn). Grey Seal haul-out counts reached 45 individuals in total: 22 at Carreg yr Henwy, 15 at Henllwyn, four at Solfach, and eight at other locations around the island.

Insect sightings produced nine Painted Ladies, two Humming-bird Hawk-moths, two Migrant Hawkers, a Bordered Straw and an Orange Swift.

Turnstone on Solfach (c) Ezra Sherwell

White Wagtail on Solfach (c) Ezra Sherwell

 Easterly force 3 winds brought smooth seas at Sea State 2, good visibility, dry conditions, and warm temperatures reaching 20°C.

Passage highlight of the day was an adult male Redstart trapped and ringed at the Observatory after being first spotted on a picnic bench in the back garden. Migration was evident across passerines and landbirds, led by 28 Linnets, 23 White Wagtails, 15 Grey Wagtails, 13 “Alba” Wagtails, 12 Willow Warblers, five Chiffchaffs, two Reed Warblers, a Garden Warbler, a Whitethroat, two Spotted Flycatchers, eight Robins,  a Tree Pipit, seven Rock Pipits, 13 Meadow Pipits, seven Stonechats, seven Wheatears, 42 Swallows, five House Martins, a Song Thrush, a Collared Dove and eight Woodpigeons. 

Redstart caught at the Observatory (c) Steven Stansfield

Seabird movement off the coast included 44 Gannets, 18 Arctic Terns, 14 Shags, nine Manx Shearwaters, six Kittiwakes, two Sandwich Terns, a Fulmar, a Cormorant, and a Razorbill. A remarkable raptor observation came from the East Side, where an adult male Peregrine flew out over the water to hunt and predate a Storm Petrel. Other raptor records included a Merlin tracking south over Narrows and the South End, a Sparrowhawk at Nant, and a second adult Peregrine on the East Side. Coastal waders and waterfowl were logged by 13 Curlews, 11 Mallards, nine Oystercatchers, seven Turnstones, six Ringed Plovers, five Dunlin, five Moorhens, four Common Sandpipers, three Grey Herons, two Whimbrels, and two juvenile Redshanks at Solfach. Gulls included 12 Herring Gulls, five Great Black-backed Gulls, four Lesser Black-backed Gulls, four Black-headed Gulls, and a single Mediterranean Gull. 

Cetaceans off the coast featured three Bottlenose Dolphins, with one logged off the North End and two off the West Coast. Insect highlights were headlined by a Bordered Straw feeding on fuchsia in the front garden of the Observatory, marking the 13th island record for the species. Other insects logged included eight Painted Ladies, eight Speckled Woods, four Silver Y moths, three Meadow Browns, a Common Blue, a Grayling and five Migrant Hawkers.