30 Days Wild – Day 16 – Dealing with Uncertainty

After writing yesterday’s blog I was out at dusk surveying nightjar again. I did find some nightjar, I heard at least four churring males, but the highlights were actually a roding woodcock and drumming snipe. The churring of nightjar is an extraordinary sound, much more reminiscent of machinery than a bird. Woodcock make a strange squeaking call as they fly around their territory and, if they fly right overhead you will also hear a short croak between the toy-like squeaking. Snipe are closely related to woodcock and also fly around at night on display flights, they make a weird sound called “drumming”, this is not a call but a noise made by the bird diving at speed so that the air causes the outer tail-fathers to vibrate. A walk on a New Forest heath at night is a fabulous experience filled with strange sounds.

Day 16 started with a look at the moth trap, there were 2 privet hawk-moth, but the only new species for the year was an uncertain, or was it? It might have been a rustic, because these two species cannot reliably be distinguished and are best recorded as an aggregate.

uncertain

perhaps an uncertain and not certainly a rustic

What’s in My Meadow Today?

There are several dandelion like yellow flowers in my meadow, but a lot of them are not dandelion. The Jack-go-to-bed-at-noon is one as are the hawk’s-beards. The smallest is smooth hawk’s-beard.

smooth hawk's-beard

small bee on smooth hawk’s-beard

They are very attractive to nectaring bees and these small bees, which I have not identified so far, like them all and often move from the smooth hawk’s-beard to the other common species, beaked hawk’s-beard.

beaked hawk's-beard

beaked hawk’s-beard

Looking into the meadow is always worth a second and a third look. As though to confirm its status as a meadow I spotted two meadow bug Leptopterna dolbrata.

Meadow bug (Leptopterna dolabrata)

Meadow bug (Leptopterna dolabrata)

I think these are a pair, although the females typically have short wings and both of these are fully winged. I also found a brilliant green beetle on the wild carrot flower head, it was a rose chafer. This was at about five in the afternoon on Day 16, as I write this now, at just after seven in the morning on Day 17, looking out of the window I can see the beetle still on the same flower head.

rose chafer on wild carrot

rose chafer on wild carrot

Advertisements

30 Days Wild – Day 11 – Land of Giants

Another great night for moths, as anyone trying to sleep will have noticed, good moth nights tend to be too hot and windless for sleeping.  I caught 31 species in the garden and an impressive 46 at Blashford Lakes. I say impressive, but this is just for these days, catches of 80 or even 100 plus species were more common in days gone by and can still be achieved on the very best night at the best sites. There now seems to be no doubt that moths, along with perhaps all insects, have become less common. This seems to be a gross decline in numbers across the board, rather than a the extinction lost of species, although rarity does precede extinction.

It is very hard to say exactly why insects have declined but I think it is to do with human n=intervention in the environment, perhaps not a single cause but a combination of habitat degradation, nutrient enrichment, habitat fragmentation, chemical use etc. The sum of our many and various impacts on the world around us. I have run traps in more out of the way places where human impact is less obvious and have been impressed by the large number of individuals, even if not species that I have seen. Once in the far west of Ireland I saw several hundred garden tiger moths attracted to a single light trap, it was an extraordinary sight!

A 25 year long study of 63 nature reserve in Germany using a standardised collecting method concluded that flying insects of all types had declined by 75% during the study period, a truly shocking statistic an done that supports the gut feeling of most that look at insects here too. You can find out more on  Naturespot an excellent site that records wildlife across Leicestershire and Rutland.

puss moth

puss moth -one of my favourites from last night’s catch.

Moth traps do not only attract moths and last night at Blashford we caught a giant lacewing, these are really big, at least for lacewings. It is a species found in damp woodland that I have only ever found at a moth light, they must be hiding out there somewhere, but they are not the most obvious creatures when resting.

giant lacewing

giant lacewing

After a morning spent mowing bramble regrowth I was off the Fishlake to do a walk for Trust members. It was very hot in the sunshine and we enjoyed seeing a hobby and hearing a cuckoo.  The cuckoos will very soon be leaving us again, work by the British Trust for Ornithology (BTO) has shown that many of our cuckoos arrive here in mid April and leave by the end of June. How do they know? They have fitted a number of them with satellite tags and you can follow their progress at BTO Cuckoo tracking , it is a fascinating project and well worth a look.

Personally I enjoyed the sight of lots of male banded demoiselle jockeying for the best perches on the yellow water lily flowers along the barge canal.

What’s in My Meadow Today?

Back home I had a wander around the edge of the meadow and it struck me that I had not mentioned clovers, perhaps because they are in almost every patch of grassland, even maintained lawns. I have just the two most common species, the red and the white clover, but both are wonderful nectar sources for insects, especially bees. Clovers, like the rest of the pea family to which they belong have the ability to fix nitrogen from the atmosphere, which is why they were used in crop rotations before we had chemical fertilisers to increase the nitrogen content of our soils.

white clover

white clover

I think I will have a quiet night in today, last night I was tramping around a New Forest heath in search of nightjar for a survey being run by the Wildlife Trust. I enjoy a survey as much as the next person, but I confess that when I was crossing from one transect to the next and found that the “path” actually just lead into an uncrossable bog, resulting in the need for a nearly two mile detour, the appeal waned a little. I did find some churring nightjar though and heard a drumming snipe. These are two of the strangest natural sounds to be heard in this country and ones that, if you have not heard them on a dark June night, need to be added to your “Bucket lists”, a proper Wild Experience.