On the 19th during sheep-gathering a covey of about 15 Red Grouse were flushed above Treshnish cow-barn. This is the largest number seen in the area for several years.
There were 3 Green-veined White at Treshnish Old Schoolhouse and near Ensay burn/Treshnish wood cattle-grid there were at least 7 Scotch Argus and 1 Dark-green Fritillary and 1 Green-veined White butterflies. A Six-striped Rustic moth was found alive inside Treshnish Old Schoolhouse. Although this moth is common in Britain I have only caught 3 individuals in 3 years and so it does not appear to be common on Mull.
No luck so far searching for the Broad-leaved Helleborine plant, which was found in the wood on 5th September 2007, when the flowers were fading, perhaps it is still too early for this late species but this species does not flower every year. Broad-leaved Helleborine is very rare on Mull but the neighbour reported a Fly Orchid in the Ensay field only about 200m to the northeast of the Broad-leaved Helleborine site and since Fly Orchid does not occur in Scotland I am pretty sure she must have seen Broad-leaved Helleborine. Devil’s-bit Scabious (+8) and Sneezewort (+14) were flowering near Ensay burn/Treshnish wood cattle-grid.
On the 21st there were 2 possible Mistle Thrushes near Treshnish Old Schoolhouse but they flew into cover before I could get a better look. I have never seen this species in the summer months in this 10x10km square.
On the 22nd there was a newly fledged Reed Bunting, several Sand Martins (must be nests nearby), 5 Dunlin and 1 adult Ringed Plover with 2 chicks at Ardalanish beach. There were 3 Green-veined White and 2 Scotch Argus were by Treshnish Old Schoolhouse, 1 Small Tortoiseshell by Ardalanish beach car park, 3 Common Blue, 2 Meadow Brown, 1 Grayling, 1 Dark-green Fritillary and many Green-veined White butterflies were by Ardalanish beach. 3 Grayling, 1 Scotch Argus and 1 Painted Lady butterflies were also to east of Ardalanish beach.
Plants at Ardalanish included: Biting Stonecrop, Common Centaury, Crowberry, Field Gentian (70), Frog Orchid (160), Greater Sea-spurrey, Hemp-agrimony, Kidney Vetch, Lesser Meadow-rue, Marsh St John's-wort, Prickly Saltwort, Purple-loosestrife, Ray's Knotgrass, Sea Rocket, Sea Sandwort, Sea-milkwort, Sea Radish, hybrid Cirsium arvense x palustre and Hairy Rock-cress.
On the 23rd there was a Tawny Owl heard at night at Treshnish Old Schoolhouse where during the day there were also 2 newly fledged Lesser Redpolls with the female adult. There was 1 Dark-green Fritillary between Treshnish and Haunn cottages, 1 Scotch Argus, 3 Green-veined White and 1 Speckled Wood by Treshnish Old Schoolhouse, all butterflies.
At night 30 species of macro-moths came to the light-tap. Of these the most interesting were Garden Tiger, Burnished Brass, Gold Spangle, V-Pug, Ingrailed Clay and The Grey. The Grey is the rarest moth found at Treshnish and this is only the second one I have caught in the 4 years I have been trapping. The other was caught on 12th May 2007 and I have just been informed that that was the first one found in 12 years in the whole of Scotland! This species is only found in Ireland, the Isle of Man and Scotland. A possible Mottled Rustic was also caught but it was badly worn and as this would be a first for Mull it will need further confirmation.
On the 24th a White-tailed Eagle flew from Treshnish Point towards Calgary and a Sparrowhawk was alarming the remaining Common Gull pair over Treshnish lochan and a Hen Harrier flew behind Treshnish Old Schoolhouse. There was 1 Speckled Wood, 1 Grayling, 3 Green-veined White butterflies by Treshnish Old Schoolhouse where there was also 1 Golden-ringed Dragonfly.
On the 25th there was a newly fledged Goldfinch family at Treshnish Old Schoolhouse. During a walk near Scoor on the Ross of Mull there was a newly fledged Spotted Flycatcher and Sand Martins near a nest site by Loch Assapol. To the south of Scoor there were 7 House Martins and several feral goats. At Ardalanish beach there were 3 unidentified divers in flight.
There was 1 Dark-green Fritillary and 1 Peacock butterflies at Loch Assapol. To the south of Scoor there was 1 Green-veined White butterfly and at the nearby beach Tràigh Bhàn na Sgùrr there were 2 Grayling. There was 1 Peacock and 1 Green-veined White butterfly by Treshnish Old Schoolhouse. There was 1 Golden-ringed Dragonfly at Loch Assapol and 1 Highland Darter dragonfly to the south of Scoor.
On the 26th there was a newly fledged Goldcrest and 2 Wood Pigeons and Lesser Redpolls in Treshnish wood and at least 2 Sand Martins were near Treshnish Old Schoolhouse where they have been seen regularly for the last few days. A second calendar male Hen Harrier was below Treshnish House. There was 1 Green-veined White, 1 Scotch Argus butterflies by Treshnish Old Schoolhouse and 1 Grayling by Ensay burn mouth.
Field Gentian and Common Centaury were found at a new site by Ensay burn mouth.
On the 27th during a walk around the crater 'S Airde Beinn with the county recorder Lynne Farrell we saw 1 Peregrine and 1 Red Grouse.
We found many Lesser Twayblade orchids amongst the heather and on the track from the main road to Glengorm (near the road) she showed me the minute Chaffweed. Other notable plants for me were common but easily over-looked plants such as Delicate Stonewort, Shoreweed, Alternate Water-milfoil, Hairy Bitter-cress, Equal-leaved Knotgrass, New Zealand Willowherb and Knotted Pearlwort. Numerous grass, sedge and rush species were also pointed out by Lynne and she identified my samples of Thyme-leaved Sandwort from Calgary, Wall Speedwell from various localities and Meadow Foxtail from Treshnish boathouse (a new species for the Treshnish and Calgary 10x10km squares).
There were 4 Scotch Argus and 1 Small Heath butterflies and 1 Fox Moth caterpillars near Mishnish with another Fox Moth caterpillar higher up the track. To the west of 'S Airde Beinn there was 1 Meadow Brown butterfly, 1 Magpie Moth, 1 Four-spotted Chaser dragonfly, 1 Common Hawker dragonfly and 2 Common Blue Damselflies.
On the 28th there was 1 Scotch Argus butterfly by Treshnish Old Schoolhouse. No Irish Lady’s-tresses orchid were found at the old site at Mornish.
On the 29th there were 3 Lapwings near Frachadil and 1 Meadow Pipit fledgling still unable to fly at Bennan. A dead Barn Owl was found beside a fence at the edge of a copse at Bennan and 1 Mountain Hare at Bennan. There was 1 Green-veined White by Treshnish Old Schoolhouse and 5+ at Bennan, 1 Painted Lady by Treshnish Old Schoolhouse with another 2 fresh looking ones at Bennan and 10+ Scotch Argus at Bennan, all butterflies.
At night only 20 species of macro-moth came to the light-trap but one, Lempke's Gold Spot was new for Treshnish. Garden Tiger and Ingrailed Clay were the least common species although the latter has been more common than in previous years.
On the 30th over 30 Sand Martins flew over Treshnish old Schoolhouse, 20 Twite were at Haunn and a male Hen Harrier was seen by Treshnish House. 2 Green-veined White, 1 Painted Lady, 2+ Scotch Argus butterflies and 1 Brimstone moth were flying by day at Treshnish Old Schoolhouse.
On the 31st there is still one Common Gull, which is often alarmed by raptors at Treshnish lochan. There was 1 Grayling butterfly by Treshnish Old Schoolhouse.