Herts Autumn Garden Vismig Watch – Week 3 (15th – 21st Sep)

“The Stats” (8pm on 21st)

This Week Totals vs last week vs same week 2020
Total No. Species 75  ↑14   ↑17
Total No. Birds 10,215  ↑6,292   ↑7.592


To September 21st 2021 vs 2020
Total No. Species  82   ↑10
Total No. Birds  21,362   ↑ 6,153

A much livelier week dominated by a more north-westerly wind direction bringing cooler air but swinging to the south for a period.  An impressive 75 different species were recorded from 16 Herts gardens along with a much greater movement of birds – over 6,000 more than last week.  The overall tally of species for September now stands at 82.

As expected, Meadow Pipit passage continued and increased with around 150 birds being reported – mainly heading south.  This passage is likely to

Herts Autumn Garden Vismig Watch – Week 2 (8th – 14th Sep)

“The Stats” (8pm on 14th)

This Week Totals

 vs Last Week

vs same week 2020
Total No. Species  61  ↓ 13  ↓ 6
Total No. Birds  3,923  ↓ 2,829  ↓ 2,501


To September 14th

2021 vs 2020
Total No. Species  77  ↑ 7
Total No. Birds  10.933  ↓ 1,653

A quieter week with a low-pressure weather system taking over bringing a damper, more south-westerly wind direction for a period.  Just 61 species were recorded from gardens during the week by 15 observers with overall numbers of birds significantly down.  While this may reflect observers pacing themselves for the long haul (!) it also reflects a quieter week in the county with fewer birds on the move.

However, garden vismig sessions did

Herts Autumn Garden Vismig Watch 2021 – Week 1 (1st – 7th Sep)

Herts Garden Vismig – Week 1 “The Stats”

(8pm on 7th Sep)

Total No. of Species Recorded 74
Total No. of Birds Recorded 6,752

As expected, the first week of the Herts Autumn Garden Vismig Watch got off to a slow but steady start.  An area of high pressure dominated for much of the week but the NNE breeze and overcast conditions did give way to a heatwave, clearer skies and a more south-easterly wind direction.

The easterly nature of the wind direction over the week meant that passage birds were evident but clearer skies in the latter half of the week brought more visible migration overhead.  Yellow Wagtails were recorded flying over 8 gardens and a steady trickle of Swallows & House Martins added to the sense of movement.  Swifts lingered into the week but only a single bird recorded after 5th.

As the sun came out

Lemsford Green Sandpiper travels 963km within 26 hours!

On Tuesday 24 August 2021 Barry Trevis, warden of Lemsford Springs nature reserve, received an email from Juan Manuel Pérez de Ana detailing a sighting of a colour-ringed Green Sandpiper at the Wetland of Las Llamas, Santander, northern Spain. The bird, bearing red over white rings on its right leg and yellow on its left was seen and photographed by Juan at Las Llamas at around 6.30pm on 24 August. It was ringed as a juvenile at Lemsford on 31 July 2018.

Not only was this the first recovery from Spain of a Green Sandpiper ringed at Lemsford, but it was also seen by Barry at Lemsford at 4pm on Monday 23 August - just the day before it was in Spain. The bird had therefore travelled the 963km from Lemsford to Las Llamas within 26.5 hours!

Read more about this exciting record in the finder's blog at http://marismasdesantona.blogspot.com/2021/08/andarrios-grande-963-km-en-26-horas-y.html

Photo: colour-ringed Green Sandpiper 'Red/White - Yellow' at Lemsford Springs on 12 August 2021 © Peter Finney

Viewing Coursers Road GPs, Tyttenhanger

We have been asked by Tarmac Ltd to stress that viewing the gravel pits is only done from the grassy bank between Coursers Road and the public track (map below).  On no account are people to climb over the fences and into the quarry area.  The quarry is a dangerous working site with engineering works being undertaken in the immediate area, heavy site traffic and deep silt pools.

Please also be aware there is no official parking near the site.  Do not obstruct the entrance to Lawsons Timber Merchants as both it and Coursers Road are busy with heavy vehicles.