Jun 142017

28th: 1 Grey Wagtail at Ensay Burn mouth.
In trying to identify hoverflies I discovered that there are a few rare species on Mull and an internet search tells me that one of them is in the area where I survey a square for the Breeding Birds Survey beside Loch Frisa! The species is Microdon mutabilis. The microdon are quite amazing. The larvae live in ant nests and feed on ant eggs. They look like tanks which the ants can’t attack. Another defence is that they imitate the ant pheromones of that particular nest and pass this ability onto their offspring. Another rare microdon also occurs on Mull, Microdon analis although neither show on NBN which is disappointing.
There are quite a few black hoverflies all of which look difficult to identify. The orange antennae of this female pin it down to Cheilosia bergenstammi or a close relative. It doesn’t appear to have hairy eyes so it could be Cheilosia soror. There are several similar species which are not possible to identify without a microscope.

This, I think, must be Platycheirus manicatus because of the extended face.

I think this is the same.

Possibly Sphegina clunipes on Ground Elder with Scaeva pyrastri flying into view.

This is one of the Ruby-tailed Wasps Chrysis sp. Chrysis ignita is the most common but they are impossible to identify from photos.

This has me stumped. It doesn’t resemble any hoverflies in my book (Ball & Morris). It looks like a wasp but has a short antenna.

One of the Broad-leaved Helleborines in Treshnish wood is going to have flowers. it is the one near the owl box. There are 4 known non flowering plants this year (3 of which are beside the farm road).

26th: Tawny Owl head calling in Treshnish wood in the daytime (from direction of owl box). I recorded the tail-end of it but deleted it by mistake so can’t be sure of the time but at about 1pm.
1 new hoverfly species today, Cheilosia impressa (all my hoverflies have the tag ‘I think’).

Also photographed: Helophilus hybridus, Scaeva pyrastri, Syrphus vitripennis or torvus, Xylota segnis and Episyrphus balteatus.
21st: 1 male Mealy Redpoll in our garden.  There was a second bird but I didn’t get a look.

20th: One juvenile Common Gull flying from Treshnish lochan towards Laine Sgeir accompanied by an adult. With a quick look on the 15th I saw one very newly hatched chick beside a warm egg and an the other side of the lochan a half grown chick away from a nest.
My second non-bumblebee/Honey Bee. It is Chocolate Mining Bee Andrena (Hoplandrena) scotica

These 2 have been verified by an expert as a Lasioglossum species sometimes called Furrow Bees.

Four new hoverfly species for me today:

Xylota segnis

I think, Platycheirus peltatus

Scaeva pyrastri

and my first bumblebee mimic. I think it is a female Eristalis intricarius.

I have seen this species pair before. It is either Syrphus vitripennis or torvus (female). The hind femur is dark except the lower third (see middle photo). S. ribesii has a yellow hind femur with a dark base.

19th: I was surprised to see a flock of about 20 Long-tailed Tits in Treshnish wood. That means that more than one pair has bred in the wood or nearby.


Willow Warbler fledglings

First definite Small Pearl-bordered Fritillary of the year at Treshnish Old Schoolhouse.
My first bee which isn’t a bumblebee nor Honey Bee. I think it is Common Furrow Bee Lasioglossum calceatum

Three new hoverfly species:
Eristalis nemorum

Helophilus trivittatus

and Scaeva selenitica

Buff-tailed Bumblebee

and a day-flying White Ermine

18th: At least 4 juvenile Long-tailed Tits in Treshnish wood.
Three Hedgehogs in 24 hours. 2 at Haunn (possibly same) and 1 at Treshnish.

16th: At least 6 juvenile Long-tailed Tits in Treshnish wood.
15th: pair of Whinchat with food in same place as yesterday.
Willow Warbler chick still unable to fly

14th: 1 male Reed Bunting at Treshnish boathouse and presumably breeding nearby. Female Whinchat with food near quarry cut in Black park obviously had a nest nearby (I’ve seen fledglings here in previous years).

A small orange butterfly was also there but I didn’t get to see it land. It was too dark for a Small Heath so probably Small Pearl-bordered Fritillary.
A Mountain Hare below Treshnish House stayed put in long grass with the dogs close by. This was an uncropped image.

I looked the next day to see if there were leverets but couldn’t see any signs. Another one seen at boathouse.

At least 7 Small-white Orchids in usual spot in Black park. I didn’t notice the grasshopper till later.

and Yellow-eyed Grass with closed flowers at bottom of Black park

New hoverfly species for me and Treshnish. It is of the Eupeodes luniger group. I needed a photo of the face to be more specific and even then I think it is difficult.

10th: At least 2 Small-white Orchids at Toechtamhor (orchids are very late this year, presumably because of dry spring)

9th: Red Grouse heard at 5am at lochan
7th: Getting better at identifying the odd Garden Bumblebees amongst the much more common White-tailed Bumblebee complex. There was one today on Foxgloves and one on 5 June on flowering Kale and on 31st May on Rosa rugosa.
5th: What looked like 1 or 2 fledged Buzzards over lochan and wood
The Narrow-leaved Helleborine which Carolyne found 2 years ago has one fruit developing.
4th: 1 Red Grouse at Treshnish lochan
3rd: 1 Basking Shark off from Treshnish boathouse.
1 Golden-ringed Dragonfly in cow-barn field (first of the year).

1 Cinnabar moth in front of Toechtamhor. Adults are rarely seen at Treshnish although one year there were a lot of larva on the Marsh Ragwort near the gate into Haunn field.

 June 14, 2017