26-08-26 I had been thinking about Cammo. Not the usual nuthatch fest or even jays but the two rows of flowers that appear every year in the walled garden for pollinators. Rudbeckias and asters I think. They are a visual delight and I presume are there for the benefit of the honey bees whose hives are over in one corner of the walled garden. Last year I had a jolly time there photographing mostly admirals, a comma and painted ladies on these flowers. I relished the prospect of visiting somewhere other than Saltoun. I also took some birdfood, just in case.
target flowers
Things did not start well on the 26th. The weather looked to be overcast to such a degree that I did not leap out of bed and hurry anywhere. In fact I probably dicked about on blog reports and tweaking photos until the sun appeared early afternoon and only then shouldered my backpack. I remember sitting at the computer to ask google what bus combination I should take to get to Cammo. (Due to the Princes St fire disruption.) It recommended a 25 to the East End (Waverley Steps) where I should change to a 43. Good to hear the 43 was still running. Now what time is the 25? It was at 13.20. And the current time? 13.18. SHIIIIIIT! I ran out the flat, down the stairs and along Iona Street to where the 25 had pulled away from the bus stop. A 16 was also leaving or I would have got that. Both stopped at the lights at the crossing, so in a challenge to my age, my lungs and all that is sensible in the world, I raced the bus up Leith Walk to the next stop. I overtook the 16 and then the 25 but the latter reached the stop way before I did. Happily there was a decent queue of folk getting on and I nearly induced a heart attack sprinting to the stop.
I caught the bus and since the downstairs was nearly full I climbed upstairs to find a seat. The exertion nearly overwhelmed me and the hot air of the bus mixed with antipersperants and hairsprays had me breathing hard wondering if I was about to pass out. It was a close thing. I really must do a bit more run training.
Once or twice a week I have been doing a four mile route down to Leith Links and back on the WoL cyclepath. It is deeply unpleasant as I seem not to be able to run at a measured pace but always compete with my last time, trying to go faster by a tiny increment and seeing how high I can get my heart rate. The other day my heart rate averaged 160. That should be my max rate for my age. Well 157 if you take my age (63) from 220. (Apparently a more modern method is age x 0.7 taken from 208 which gives 164 for max heart rate.) Anyway during these 4.2mile pain fests (although the pace isn't what I'd consider fast) my heart rate is and regularly gets into the 170s. I think it might have been towards 175 upstairs on the bus as it really did feel I was about to black out. Anyway I caught that bus and got off at Waverley where I stood for maybe 20minutes on the 43. I could have walked there from home and caught the same bus.
Once or twice a week I have been doing a four mile route down to Leith Links and back on the WoL cyclepath. It is deeply unpleasant as I seem not to be able to run at a measured pace but always compete with my last time, trying to go faster by a tiny increment and seeing how high I can get my heart rate. The other day my heart rate averaged 160. That should be my max rate for my age. Well 157 if you take my age (63) from 220. (Apparently a more modern method is age x 0.7 taken from 208 which gives 164 for max heart rate.) Anyway during these 4.2mile pain fests (although the pace isn't what I'd consider fast) my heart rate is and regularly gets into the 170s. I think it might have been towards 175 upstairs on the bus as it really did feel I was about to black out. Anyway I caught that bus and got off at Waverley where I stood for maybe 20minutes on the 43. I could have walked there from home and caught the same bus.
When I got to the walled garden it was 3pm, often the time I pack up and head home. There wasn't a huge amount of sun and I felt like crossing the road and catching the next bus home, but persisted because I was there anyway. The rewards were not immediately apparent - too dark under the foliage for birds and there were no butterflies on the two rows of flowers. None. Zilch. Zero.
f/16, ISO 800, 1/160 flash on
However there were a few flies. I had prepared myself for a lack of butterflies, and should such a thing occur there might be hovers and the like on the same flowers. There were. Not swarms, but a few. And I have been really enjoying the challenge of macro pics lately. The 90mm lens I have is one of the best in the world and the micro four thirds system I operate seems to really suit macro work and to produce many of the best macro photos I see on the internet and social media. I had forgotten how challenging it is though. An art rather than a science and I had forgotten all the settings I used previously.
An example of the art vs science might be that I use the semi-opaque cover for the speedlight (flashgun) to reduce the amount of light it produces. Even at the lowest setting the flash has a tendency to over-expose macro photos in decent light. To curtail this I cut three rectangles of normal photocopy paper and put them into the semi-opaque flash diffuser. That seems to work better although I don't seem to be able to change the shutterspeed when the flash is engaged and it always shoots around 1/250 or 1/200. Google A.I. tells me I can unlock higher speeds in HSS mode but that I do not want to do that. Okay I won't.
Anthomyiidae indet.
Today I started out using the flash with diffuser. Not the £55 one I bought off the internet because it is large and scares off anything with eyes and wings. But the £10 softbox that sits not much bigger than the flash and gives off a soft glow. And folds flat into the camera case. Because the flowers were reflecting a bit of light and the sun was threatening to peep out from time to time I found I was actually getting better results when I switched the flash off. The shutterspeed could then be cranked up to 1/3200 by changing the ISO and the images seemed sharper. If there were dark shadows I could tweak them in post. So after a while I took the flash off. I'll note which pics are with the flash and which aren't as it is not obvious.
this was a practise shot to check lighting and depth of field
f/16, ISO 800, 1/125, flash on
f/16, ISO 800, 1/200, flash on
f/13, ISO 800, 1/250, flash on
fungus the size of a dinner plate
growing out a tree stump
growing out a tree stump
a handsome pair
There is a very charming mini-orchard of apple and pear trees between the bee hives and the flower beds. All quite small sized trees and all producing some good looking fruits. When I got tired of tweaking camera settings and kneeling beside the flowers I'd go for a wander round the orchard and check for butterflies and birds. (I was surprised the fallen rotting fruit didn't attract more than a solitary red admiral I photographed mid-afternoon.) The afternoon warmed up and the sun began to peak out a little. It was very nearly pleasant and I was glad I'd stayed rather than returning home in a huff. There were some old poppy seedheads which I'd try taking pics of. Unlike the flies they held still and made it easier to test settings (depth of field) and chimp the results. Same with the fruit. I liked the almost architectural tops of the seedheads.
f/9, ISO 1250, 1/250 flash on
just the one Volucella pellucens all day
and I didn't really do it justice
and I didn't really do it justice
flash off for all butterfly shots
There was a small buddleia round the back of the flower bed behind a hedge. The RA (I think there was only one) was flying between the rotten ground fruit and the buddleia, which I couldn't see from the flowerbed. I'd have to get up off my knees and then traipse round the back of the hedge and see if either the RA or a very pretty comma were nectaring there. Most of the time they weren't. When they were I'd use other parts of the buddleia to hide behind and push my macro lens through the plumes and branches to get close. I got some leeway but if I got too close the butterflies would bugger off to the tops of the small apple trees and wait for me to leave, till I went back to the rudbeckia etc.
my old friend the Tachina fera/magnicornis
(image 1)
(image 1)
The most numerous species on the flowers were these Tachina flies. Lots of them. A bristle fly or as I call them hairy-arsed flies. They have appeared all over lately and I quite enjoy how non-glam they are. Obsidentify does not discern between Tachina fera and Tachina magnicornis because it claims the differences are too slight to observe in most cases.
Google AI seemed to be more ambitious in its identification confidence. I had a chat with the AI bot after asking for the differences between the two sub-species and it asked would I like it to try and tell the difference using my photos. This was its response which came just as I was beginning to think the species was definitely fera rather than magnicornis.
Google AI seemed to be more ambitious in its identification confidence. I had a chat with the AI bot after asking for the differences between the two sub-species and it asked would I like it to try and tell the difference using my photos. This was its response which came just as I was beginning to think the species was definitely fera rather than magnicornis.
Based on the visual evidence in your photos, this fly is Tachina magnicornis.
Here are the key identifying features visible in your images:
- Dark Front Feet (Tarsi): If you look closely at the second and third images where the front feet (the very tips of the front legs) are resting on the flower petals, they are distinctly dark brown to black. Tachina fera would have noticeably bright yellow or orange front feet.
- Broad Forehead (Frons): The side profiles (especially in the third image) show a very wide, broad space between the eyes and the front of the face, which is characteristic of the "broad-fronted" Tachina magnicornis.
- Large Antennae: The third image gives an excellent look at the antennae protruding from the front of the face. They are notably large and prominent, which gives magnicornis its specific name (meaning "large-horned").
f/11, ISO 3200, 1/1600 no flash (no noise reduction in post)
image 2
image 2
Which is all very well. However it was worth a little more investigation and backtracking because Obsidentify is a Netherlands based app and has a slant, a bias towards European identifications which most of the time (but importantly not all) overlap with UK species. (Also confirmed by my Big Book of (Britain's) Insects only mentioning fera and not magnicornis.)
Finally I got round to asking Google AI was magnicornis ever recorded in Scotland. NO!!! End of. Fuck sake, this should have been picked up by Obsidentify when I input the area the pics were taken. It (magnicornis) has been recorded in the channel islands and is making its way slowly up the South of England but basically all the Tachinas I have ever seen are fera. Despite the assurance of Google AI re these photos. I think this underlines the potential for errors using apps and AI.
The trouble is basing an ID on a factor like a wider forehead when I don't have a reference for the other narrower forehead. I have to admit to feeling let down by technology that is giving me misinformation all over the place while missing the most important aspect which is where the sighting took place. Basic schoolboy error.
The trouble is basing an ID on a factor like a wider forehead when I don't have a reference for the other narrower forehead. I have to admit to feeling let down by technology that is giving me misinformation all over the place while missing the most important aspect which is where the sighting took place. Basic schoolboy error.
Tachina fera NOT magnicornis
f/11, ISO 3200, 1/1250, no flash
image 3
After asking AI about the distribution of Tachina magnicornis in the UK I happened to put the 4 photos above into Google AI again and it has now changed its tune entirely identifying the fly as fera. I did not ask why last time it said the reverse using the same ID pointers. At least one of us appears to be learning.

This rather worn specimen was the liveliest of the three commas flying in the walled garden. There was another similar and they would go spiralling up into the sun every now and then. Mostly it stayed over to the North West on shrubs.
number 2 comma - less tatty, less aggressive
rare shot of admiral enjoying fallen apples
Tachina fera
f/7.1, ISO 1250, 1/250 flash on
Syrphus ribesii
f/10, ISO 1250, 1/250, flash on
I tended to use the flash on the rudbeckia because of the dark centre.
I tended to use the flash on the rudbeckia because of the dark centre.
poppy seed-head taken with diffused flash
the third comma - something special
comma number 1
no.3
apple tastic

Okay this is the third comma and you can see it is different from the other commas I've been seeing recently at Saltoun and elsewhere. Since there is only one other form I know of, I thought it might be that - a Hutchinsoni, named after Emma Hutchinson 1820~1905. She bred commas and noticed there are two distinct types; those that respond as Springtime caterpillars to the lengthening of the day signalling approaching Summer, and quickly mature into lighter coloured, less jagged-winged butterflies that will breed quickly in June / July and produce eggs for a second brood late Summer.
So that suggests this could not be a Hutchinsoni form as they would likely all be dead by mid-August. It is probably just a female which also have less jagged wings than the males. When I asked Google AI was this a hutchinsoni form it said yes it was. But we already know AI is full of shit.
Rubeckia hirta - black-eyed Susan
video clips of Tachina fera and Apis mellifera (honey bee)
soundtrack: eyes like water by Maple Sun, Holly Jones
f/3.5, ISO 500, 1/5000, no flash
honey bee
f/5. ISO 500, 1/1000, no flash
Syrphus vitripennis
It was getting late and not any sunnier. Time to go home via a wee walk about the lawned area next to the main house ruins where I occasionally see jays and butterflies round the tree deep edges of grass. Sure enough a worn holly blue was fluttering about, reluctant to land at first. A male, perhaps looking for females but also nectar. I set the camera to pre-burst to try to get the wings open to confirm gender. It obliged quite nicely. The problem is always what distance to shoot from: too close and you get only one or two shots of it taking off. Too far away and it becomes just a white detail-less blob. I got lucky but the specimen was a bit worn for anything special.
honeysuckle

And that was that. I walked back to the bus stop at Barnton junction and caught a Stagecoach bus back to the bus station and an easy walk home. Much more efficient than the diverted 43 along Princes Street. I had far more than I thought I might get today but at the same time I might hold off before returning soon, although I had a great day there mid-September last year managing to bribe some nuthatches out the trees to the camera. I do like it as a place, even if it is on the wrong side of town to access easily. Maybe I should cycle next time although there are no easy direct cyclepaths from D'mains to Cammo.
just under 3miles in just under 3hrs
Hey and also!
This blog has just gone past 2,000,000 pageviews!
It took 10 years to get to 1m and then another 3 to get to 1.5m.
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Thanks for your continued support.
Hey and also!
This blog has just gone past 2,000,000 pageviews!
It took 10 years to get to 1m and then another 3 to get to 1.5m.
It seems to be accelerating.
Thanks for your continued support.

















































































































































