Sunday, 5 December 2010

New species for the group - ICELAND GULL!

The cold temperatures have continued in Aberdeen so our efforts to catch gulls have also continued. Yesterday lunchtime we'd just put the sausages on for sausage softies when Ewan noticed gulls on the neighbour's roof. A quick scan established the usual common gulls queueing up but also an Iceland gull sat above our catching area!
We quickly put out some cooked liver and bread and waited. Other gulls starting to come in but the Iceland didn't move! After what seemed like an age the bird swooped in and landed straight in the catching area. A quick check that the catch was safe and we pulled. The bird stayed perfectly caught along with 12 other gulls.
The gull was a 1st year bird and was a new species for the group. Previously there has been one Glaucous gull rung. It was a lot smaller in the hand than we'd expected, as can be seen below with a 1st year herring gull for comparison.
We think this was only the 10th Iceland Gull to be ringed in the UK so we're a little bit excited! Not bad for our little garden in an Aberdeen suburb! We're now up to 74 gulls this winter in the garden including British and Norwegian controls and now an Iceland gull. If the snow stays we'll be getting through the E's and G's this winter.
After ringing, weighing, photographing and measuring the bird we released it again and reset the net to see what else would turn up!
We've also just heard from Dave Anderson in Central Scotland that the Black-headed gull was ringed as a chick on Carron Reservoir near Stirling in late June this year, a total distance of 167km.
Ewan and Jenny
(Photos copyright of Ewan Weston and Jenny Lennon)



Friday, 3 December 2010

Great gulls!

The snow in Aberdeen has halted some of the waxwing chasing in the last week or two. Out in Westhill we've returned to our favourite garden ringing of gulls. A couple of miss-fires with a whoosh net has meant a change in tactics so we are now using a classic clap net as that seems to work better in the 20in of snow we have in our garden.
In the last few days we have caught over 60 gulls with another 10 by the young lads in Peterculter. We've been weighing all of the birds and they seem to be stable with about 10% of birds being significantly below weight.


Star birds have been a juv Black headed Gull British control and a Stavanger Common Gull - taking our tally to four for our garden in the two years we have lived here!

The most interesting bird was a common gull we rang yesterday morning in Westhill and was caught less than 2 hours later in Peterculter by Euan and Calum - a distance of 4.2km as the gull flies. This was the lightest bird we have caught in the garden so it was maybe that which made it travel further for food.

Gulls number have decreased in Westhill as birds have probably headed into town looking for food where there's less snow. But we will try again tomorrow with our reduced bread from Tesco!

Ewan and Jenny

Friday, 19 November 2010

Waxie News

It’s been a month now since the waxwings started arriving in Aberdeen, and over 400 birds have been colour ringed.

OOB photographed at Penicuik, Midlothian by John Hogg

Please keep checking all flocks (and photographs) for colour-ringed birds. Recent sightings have come from Montrose (Harry Bickerstaff); Hogganfield Loch, Glasgow (Jim Duncan) and Manchester (Kane Brides).

Jim Duncan sent a photograph of a colour-ringed bird showing only the metal and white ring which wasn’t enough to identify the individual. He very kindly returned the next day only to get a photograph of a different colour-ringed bird! Tarry Harry at Aboyne colour-ringed 3 in his garden on 7/11/10 before the birds moved. 2 of them turned up in Aberdeen a couple of weeks later while it sounds like Kane Brides and colleagues saw the 3rd one in Manchester!

An Orkney bird (triple yellow) turned up and was photographed in George Begg’s garden in Oldmeldrum, a village 30km NW of Aberdeen, at 10am on 21/11. Raymond then saw the same bird 3 hours later on the south side of Aberdeen.

Allenvale Cemetery has been one of the main ringing sites with Lindsay able to look out of his window and call up a few troops for a ringing session when the birds are around. We’ve also had smash and grabs in and around the city but “The Shrine” has come into its own this past 2 weeks with nearly 200 birds caught in 5 visits. Usually this site, with 5 white rowan berry trees, is stripped in a few days a bit later in the season but with wide spread berries still available around town the birds seem to be coming and going here this winter, giving us some great ringing opportunities.

This site was first stumbled upon by Alan Leitch in 1990. He was sacked from his job at the Coop in Westhill after he phoned in “sick” and his boss spotted him out ringing waxwings the same day! Next day he borrowed Raymond’s car, got completely lost in Aberdeen, and had to slam on the brakes as a flock of waxwings nearly hit the car as they flew out across the road from the rowan trees. Alan now lives on Orkney so it is really smart indeed that we have recaptured 2 of the birds he has recently ringed on Orkney at The Shrine in the past 2 weeks.
Thanks very much to Betty Rait and all the other residents of “The Shrine” for allowing us to ring in this rather public site.

Raymond

Friday, 12 November 2010

Waxwings - Week Two

We're now into our second week of catching Waxwings, and have colour ringed over 200 birds. Numbers are beginning to dwindle in Aberdeen as birds move through the country, although we been able to continue catching birds all week. Our second re-sighting outwith Grampian, Green, Red, Yellow was ringed at Dyce on 31st October and was seen in Levens, Cumbria on the 7th of November. Thanks to Robert Polkington for the sighting and photo below. Orkney Ringing Group have also been individually colour ringing birds this year, and one has been re-sighted in Aberdeen.

One of the downsides of Waxwing invasions is the birds susceptibility to fly into glass. Obviously there are no windows and bus shelters in the forests they come from, and with most Waxwings feeding in urban areas, casualties are high. We've had one colour ringed bird die because of this so far, and to make it worse it was our Swedish control! It was caught and colour ringed at Allenvale Cemetry on the 5th November and hit a house window five days later at Cragiebuckler. Gutting! We await the original ringing details for the bird.

Hopefully as birds start to move more sightings should come flooding in. Keep checking these flocks for rings!

Wednesday, 10 November 2010

Far South Greenshank

A Greenshank colour ringed (left leg black over blue, right leg red over black) at Montrose Basin on 22nd August last year was re-sighted on Porto Santo (an island of the Madeira Archipelago) on 20 October this year, a movement of 2837 km! This is one of our most southerly Greenshank, with other birds having been seen in Morocco and the Cape Verde Islands.

The bird was part of a record catch of Greenshank for us, 34 birds in one night. Unusually it was ringed as an adult, the majority of birds caught on passage are juveniles.

We have been colour ringing Greenshank on the Ythan Estuary as part of a project set up by Farlington Ringing Group since 2003. For the past few years we have also caught at Montrose Basin along with Tay Ringing Group, with last year being our highest ever total.

Thanks to Adrian Aebischer for the re-sighting

Sunday, 7 November 2010

Waxwing to Fife

We've had our first colour ringed Waxwing re-sighting of the year, outwith Grampian. Red, Yellow, Red was ringed in Ballater on the 30th October, and was spotted by John Nadin feeding on berries beside Dunfermline High School a week later. Below is RYR after ringing along with a photo by John. Several of the birds from the same catch have been re-sighted around Aberdeen.

Thanks to John for the re-sighting and photo

Friday, 5 November 2010

Waxwings - Week One

This year’s early invasion of Waxwings has seen thousands of birds in and around Aberdeen, with GRG trying to catch as many as possible. In the past week we have colour ringed 153 birds, with a white ring underneath the metal on the right leg and three colours on the left. Please look out for them.


We caught our first control today - a juvenile with a Swedish ring, the third for the UK!!

Also caught was an adult female Sparrowhawk, that had been terrorising the Waxwings all day

Hopefully we'll get lots more Waxwings this weekend and in the coming weeks, unless all the berries have been eaten by then!

Thanks to Thomas, Bogo and Derek for the photos