Friday 30 April 2021

Emperor Moths on Dartmoor

Monday 26th April was yet again a sunny affair but with a bitingly cold easterly wind as I headed off to Wembury to meet work colleague Sue for a walk and a catch up. 

We had an enjoyable walk and by the time we returned to the cafe for our pasty lunch the wind had considerably eased and it became surprisingly warm in the sunshine.

At least 12 flighty Whimbrel were out on the rocks on the ebbing tide along with Oystercatchers and 7 Bar-tailed Godwit (2 in full summer plumage).

Whitethroat were vocal and showy with at least 6 males seen and heard.

Whitethroat, Wembury

At Wembury Point 2 House Martin and a Swallow hawked overhead and a male Wheatear was feeding along the cliff top but the highlight was a female Redstart feeding in the gorse bushes, only my 2nd sighting of one at Wembury.

On heading home I decided to stop off at Laira Bridge to walk along the Plym to Marsh Mills on the incoming tide. Blaxton Meadow was beginning to fill up with water and out on the mud were 5 Greenshank, 3 Oystercatcher, 3 Curlew, 2 Whimbrel and a limpy Bar-tailed Godwit.

Whimbrel, River Plym

Tuesday 27th April was again sunny but pleasently warm with a gentle breeze and so I headed out to Grenofen Woods for my annual spring time walk. 

It was very quiet bird wise but I did see a Tree Pipit songflighting with another one heard only, a pair of Marsh Tit in trees by the bridge with the male busily feeding the begging female and a Garden Warbler feeding on insects in an oak tree with another two heard only.

Tree Pipit, Grenofen

Tree Pipit

Chiffchaff, Blackcap and Willow Warbler were seen and heard, a female Mallard with 5 ducklings was seen on the river by the bridge along with a Grey Wagtail, Nuthatch were heard calling and Mistle Thrush were seen with beakfuls of food for nestlings. Buzzards, Swallow and House Martin were also seen overhead.

I used my Emperor Moth lure once but with no luck and as it was so quiet I decided to head homewards and stop off at Roborough Down for another try with the lure there.

I set the lure up in a gorse bush while I ate my lunch but after 10 minutes I moved to a different spot and within minutes a male came in, dashed around a bit and then flew off. I tried in another spot with no luck and with the clouds rolling in and covering the sun and the temperature dropping it was time to give up for the day - or so I thought.

I began to head home but decided to have one last try, more in hope than expectation, but it paid off with 2 males coming in to the lure within minutes and both settling on the vegetation nearby - result!

Male Emperor Moth, Roborough Down - a real beauty and a member of the Silk-moth family

Emperor Moth - huge antenna used to detect the location of females

Emperor Moth

Emperor Moth

Emperor Moth - underside pattern looking like a colourful panther! 

Emperor Moth

Emperor Moth

Emperor Moth

Emperor Moth

Emperor Moth

It was otherwise quiet on the Down with 2 Redpoll, a female Whitethroat, Skylark, Willow Warbler, Linnet, Stonechat and Chiffchaff seen along with 2 female Brimstone and a few Peacock.

Thursday 29th April was another cool day despite the sunny spells and gentle breeze and so I headed out to Wembury again for a walk. The chilly air kept insect activity at bay and I only saw one butterfly flit past, a probable Wall but too brief a view to call for sure. St.Marks Flies were on the wing though in more sheltered, warmer spots with one enjoying the warmth of my hand for a short time. 

St.Marks Fly, Wembury

St.Marks Fly

It was high tide but dog activity was high also and along the beach I had some nice views of 23 Oystercatcher, at least 20 Whimbrel, 3 Dunlin and a Common Sandpiper but all were nervous and flighty due to the constant disturbance.

The usual Wembury Dog-fest

Whimbrel

Whimbrel

Dunlin

4 Canada Geese, 4 Shelduck and 6 Mallard were also seen but a surprise sighting was a Sedge Warbler singing briefly in the scrub and reeds along the beach at the base of the cliffs.

Shelduck

Sedge Warbler

A Grey Seal was seen poking its head out of the water close to shore a few times and a lone Gannet was picked up offshore flying east. 2 Bloody Nose Beetle larva were found on the pathside vegetation and the usual Stonechats, Chiffchaff, Whitethroat, Swallows, Linnets and Cirl Buntings were also seen along the walk. 

I stopped off again at Laira Bridge on the journey home and walked along the Plym to Marsh Mills, it was very quiet on the low tide with a Whimbrel, a Curlew, a House Martin with Swallows, 2 Mute Swan, 2 Roe Deer, 2 Brown Rats and a male Orange Tip the only sightings of note. 

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