Wednesday, 6 February 2013

Pine Grosbeak Shetland

After what has been a quiet winter for rarities a not wholly unexpected Pine Grosbeak was found at Collafirth on mainland Shetland on the 29th January 2012 and constitutes perhaps the best bird of Winter 2012/13 to date. The bird, a first winter male, has been showing well close to the pier at Collafirth where it has been feeding on conifers. This is the 12th British record of the species with only seven records since 1950, the most recent being from 8th to 10th November 2004 at Easington in Yorkshire. Records are from March, May, October and November with four of the records from the latter month. The distribution of records shows and east coast bias with two records each from Shetland, Yorkshire and Kent.


Pine Grosbeak - Phil Woollen

Pine Grosbeak , Collafirth, Shetland - 
Photo from Phil Woollen's excellent 'A Wirral Birders Blog'

The Pine Grosbeak is distributed across the boreal areas of Northern Europe, Northern Russia, Alaska, Canada and North America where the small amount of racial variation involves size and the intensity of colour in the adult males. Across this extensive range the species is a fairly common bird found in confer, Alder and Birch forest where it feeds on a range of berries, seeds and in the summer, insects. The Pine Grosbeak is a sedentary or patially migratory species prone to erratic eruptive movements to the south of its range. These movements are driven, in a similar manner to Waxwing, by a failure in the winter food supply with, in some winters, most of the population remaining close to the breeding grounds and in others entire populations may move hundreds of kilometres south from the typical wintering grounds. The autumn of 2012 experienced such a movement with many hundreds of birds being seen in Scandinavia from August through November, with this large movement hopes were high for a long awaited British record although many hoped for a mainland bird.




Monday, 4 February 2013

Spring is Here?

It was a pleasure to be working on site today, the sun was shining and it truly felt like Spring was around the corner. The site is located just to the north of Romsey and is a tree lined lake which affords a high degree of shelter and receives the first of the suns warmth. In the morning light a pair of Great Crested Grebe were performing their courtship displays with face to face ritualised head-shaking and preening but this morning the display not progressing into the spectacular 'weed dance' . Other signs of Spring included Rook carrying nest material back to their nests and a great deal of activity around the local rookery.  The first Colt's-foot in flower with attendant Drone-fly Eristalis pertinax added a splash of colour to still bare earth banks.

Eristalis pertinax - Deskbound Birder
Drone-fly Eristalis pertinax - Simon Colenutt

Colt's-foot - Deskbound Birder
Colt's-foot - Simon Colenutt

The First Delayed Post of 2013


It's been a lot longer than intended to post my latest blog, what with Christmas and New Year festivities, preparing for the arrival of Sarah and my baby in the coming months and the joys of the end of year tax return time has just been too short to either go birding or post here.

My first birding outing of the year came as late as 19th January following heavy snowfall that bought much of England to a grinding halt. I ventured out on the local patch for the first time in 2013 hoping that the freezing conditions will have led to a reshuffling of birds at the site. It was not long before the first of the unusual visitors, for the patch at least, appeared with five Wigeon on the River Test flowing warm and unfrozen through its frozen flood plain. Next was a patch tick, a fine adult winter Mediterranean Gull loitering amongst an inflated Black-headed Gull flock (up from the usual 70 to 180 birds) on the snow covered fields. Then another patch record , a group of six Stock Dove and next yet another patch record a quite astonishing flock of 200 Lapwing settled in the fields, the previous highest count being a flock of 25 flyover birds. Other good patch bird included 30 Fieldfare, 6 Skylark, 11 Snipe, 3 Goosander and 6 Tufted Duck. So all in all, on a local scale I was very pleased with my first venture onto the patch in 2013, my sightings clearly being enlivened by a cold weather movement.

Cold weather movements were a feature of this period throughout the country with many species heading south and west to escape the severe conditions. Cold weather movements are often caused by freezing conditions on the continent causing birds to move west to the British Isles. The mild conditions of the British Isles, as a result of the warming influence of the Atlantic Ocean, may result in large numbers of birds escaping the colder continental climate to winter here. These movements are driven by food shortages as a result of the frozen conditions. Classic families associated with these movements are Plovers, Thrushes and Skylarks - some such as Tufted Duck may undertaken local movements from frozen still freshwater bodies to more coastal or flowing waters which remain ice free while others may move hundreds of miles.

A visit to Pennington Marshes on 20th January revealed huge numbers of Fieldfare that had clearly escaped from colder conditions to the coast, which at Pennington was relatively snow free. Whether these birds were continental or of UK origin is not known. Fieldfare are usually nervous birds and difficult to approach but these birds were confiding, preoccupied with feeding after escaping frozen conditions. I estimated that there were around 2000 birds present but a constant easterly movement may have meant a significant underestimation in numbers. Intriguingly there were very few Redwing present, presumably these had moved elsewhere - perhaps further south?

 
A Frozen Winter Patch 


Tuesday, 18 December 2012

Winter Mothing


I took a punt and ran the moth trap in my Romsey garden on the night of Saturday 22nd December, with temperatures remaining at around 8c I was hoping to catch a late flying moth or two. I only caught two moths of two species but both cracking - a December Moth and a Feathered Thorn. The December Moth is a widespread species of eggar frequently recorded at light traps between October and January. The Feathered Thorn is a similarly widespread species flying from mid-September to early December.

Feathered Thorn - Simon Colenutt, Romsey, The Deskbound Birder 
December Moth (top) and Feathered Thorn, Romsey

Sunday, 9 December 2012

Foot It

The 'Foot It' craze seems to be spreading through the birding community and what a great idea it is. The  Foot It blog http://birdingbyfoot.blogspot.co.uk goes into more detail so I won't do that here but basically the aim is to see as many birds as possible on foot from your home in January - no buses, no bikes and no cars - just on foot - got it! So inspired by the challenge I have set up my own Foot It area, and here it is:



My area is a 2.5km radius (well its a square radius) roughly centred on my house (red dot), the orange areas being those that I am most likely to bird. My Foot It patch takes in my local patch (orange shaded area to west of Romsey) which I have posted sightings from on this blog. This area includes the flood plain and grazing marshes of the River Test as well as Squabb Wood an area of mixed woodland. In addition it includes Fishlake Meadows, an area of floodland to the north of Romsey, this area attracts good numbers of gulls and wildfowl. The area to the south-west of Romsey is a mystery, I have never been there even though it is readily accessible so this should be an interesting element of Foot It - from an aerial photograph it looks to be mainly arable and pasture with water courses.

I think my area gives me a good range of bird species although I will struggle with some classic arable species such as yellowhammer and grey partridge and waders are pretty thin on the ground. I did a trial birding visit on Saturday 8th December walking through the area to the north-west of Romsey, crossing the railway track at Greatbridge and then back to the town through Fishlake Meadow during these three hours I recorded 62 species and missed a few obvious birds such as sparrowhawk, snipe, treecreeper and lesser redpoll - birds that are usually pretty reliable here. So I think that my target for January should be 85 having flicked through the Collins guide to see what else may be available on my patch. Looking forward to January and the challenge.......

Monday, 3 December 2012

Romsey Birding 1st December


On a beautiful clear and frosty morning I took a break from the DIY and helping with pre-Christmas dinner party organisation to wander the local patch from Sadler's Mill to Squabb Wood on the outskirts of Romsey. The morning was truly stunning with a hoar frost encrusting the trees and the River Test steaming as though I had been transported to the winter geysers of Yellowstone Park. 


Sadler's Mill, Romsey - Simon Colenutt - The Deskbound BirderSadler's Mill, Romsey - Simon Colenutt - The Deskbound BirderSadler's Mill, Romsey - Simon Colenutt - The Deskbound BirderSadler's Mill, Romsey - Simon Colenutt - The Deskbound Birder
River Test Between Sadler's Mill and Squabb Wood, Romsey 
(all pictures taken on my iPhone) 

Although my birding here is in its infancy it was nice to get four patch-ticks in a couple of hours with snipe and treecreeper not providing any great surprises as they snuck onto the list. Goosander on the other hand was a nice bird to add with an adult male and an immature male on the River Test and, finally, a woodcock being flushed from the edges of Squabb Wood. Woodcock are stunning birds when seen close at hand with their cryptic, bracken toned plumage and large dark eye set at the top of the head for near 360 degree vision.

Woodcock - The How Hill Trust (The Deskbound Birder)

Woodcock 
(photo from How Hill Trust http://howhilltrust.org.uk

The woodcock breeds throughout much of the UK at low density but it is in autumn, when our resident (and largely sedentary) birds are supplemented by a large influx of migrants from Fennoscandia and Russia, that many birders connect with this species. Most woodcock are encountered as they are flushed from damp woodland floors but also regularly from more unusual habitats shortly after they arrive on our east coasts - for example, birds can be encountered in sand dunes, on shingle beaches and even urban parks and gardens. It has been estimated that around 800,000 woodcock migrate to the UK in the autumn and winter months. Migrants usually start arriving during the second week of October with large falls often said to occur around the time of the full moon in late October and particularly in November, the latter being regarded as 'the woodcock moon'.

Finally, mammals were much in evidence with roe and fallow deer in Squabb Wood, a water vole showing well in one of the ditches that cross my regular birding route and, best of all, an otter seen all to briefly as it splashed after fish on the margins of the River Test then a view of its head followed by its tail held erect as it dived and swam, unseen, to safety.

Tuesday, 20 November 2012

Pipits and Pigeons at Pennington and Romsey


With a bit of free time this weekend I decided that a little birding was in order between house duties. On Saturday I had a short stroll around Pennington Marshes. Pennington Marsh is feeling decidedly wintery since my last visit on 11th and 12th October (http://thedeskboundbirder.blogspot.co.uk/2012/10/pennington-marsh-11th-12th-october-2012.html)  and the marsh to the south of Lower Pennington Lane is holding much surface water so numbers of birds here were large with approximately 250 black-tailed Godwit and many lapwing and golden plover. Duck numbers were high with over 1000 each of wigeon and teal and many pintail and shoveler. In the winter sunshine the ducks were displaying and the marshes echoed with the 'weeee-oooo' of wigeon and the soft piping of teal. Pintail too were getting into the spirit with their soft bubbling teal like whistle. Pintail, at close range are stunning ducks with their soft blue-grey vermiculated bodies, chocolate head and hind neck with a strap like spur of white extening up either side of the neck, shaggy golden and black scapulars and long fine black 'pin-tail' eminating from the greyish tail set within the jet black ventral area.
 
Northern Pintail, Terry Sohl - The Deskbound Birder
Northern Pintail (Male) - Photo by Terry Sohl (view Terry's massively 
impressive range of photographs here: http://sdakotabirds.com)
 
Ducks at this time of the year are an interesting mix of fine adult males and the young of the year approaching their first adult feathers with often strange conbinations of adult male and immature feathering, Wigeon can be particularly variable with a wide range in male plumage patterns but all ages seem to join in with bouts of display.

A female merlin was patrolling the marshes harassing the dunlin flocks and I watched her single out a dunlin from the main flock and pursue it for over a minute making repeated lunges just for the dunlin to perform a neat zig-zagging shimmy and elude the predator. Fortuitously, for the dunlin, the main dunlin flock passed close by and the pursued made a dive for the crowd, the Merlin realising that it was out gunned by numbers dropped like a stone to harass the meadow pipits and skylarks feeding below in the grasslands.

Amongst the pipits in the grassland I came across four water pipit feeding amongst the flooded grassland and rush beds. Water pipit is unusual in that those seen in the the British Isles in late autumn and winter have migrated northwards from mountaineous areas of southern and central Europe. These birds breeding in the short and flower rich grasslands and scree scattered slopes of the likes of the Alps and the Pyrenees decend to the more moderate climates of the lowlands of Europe to the north (including Britain), west and south and into northern Africa where they frequent freshwater marshes.

Water Pipit, Daniele Occhiatos - The Deskbound Birder
Water Pipit - Winter Plumage (Photo by Daniele Occhiatos', see more of
Daniele's stunning images at http://www.pbase.com/dophoto

 
On Sunday I walked from home onto the meadows between Sadler's Mill and Squabb Wood that constitute my 'very local' patch. I spent a short while at the 'viz mig watch point' which has great views over the River Test valley and enjoyed small flocks of lapwing, redwing, fieldfare and skylark moving north. However, most notable were the vast numbers of wood pigeon that seemed to be erupting out of the woodlands, and fittingly mostly from Squabb Wood, due to the local shoots. It was impossible to count the birds but I estimated approximately 2,000-3,000 birds present.

Populations of wood pigeon in the west are more sedentary than those in the east and those in the UK appear to travel only a short distance from their natal grounds. By contrast northern and eastern populations are more migratory with, for example, those from Scandinavia migrating south-west through Denmark, the Netherlands and into France while many of these continue and pass to the west of the Pyrenees to take advantage of the autumn acorn crop in Spain. While migration patterns through the UK are not fully understood it would appear likely that this wave of migrants passes through the UK explaining the large numbers recorded on the east and south coast in late Autumn. These birds probably account for those seen today above the beech and oak woodlands that line the Test Valley in which Romsey is located although, conversely, it is thought that continental birds pass through the UK rapidly accounting for the very small number of ringing recoveries of continental birds in the UK and thus these birds in Romsey could relate to aggregated British stock.While much maligned and overlooked, close study of woodpigeons reveals that they are quite stunning beasts but en-mass they provide a late Autumn spectacle that is hard to rival.


 
Romsey Birding, Simon Colenutt - The Deskbound Birder
View of Romsey showing Romsey Abbey from my 'viz mig watch point'
above the Test Valley (S.Colenutt)