Category Archives: 10) Auks, Sandgrouse, Pigeons

Arctic Guillemot ssp. hyperborea

Still Identifiable

Hypothesis: Despite not even being recognized as a valid taxon in some quarters, some Arctic Guillemots ssp. hyperborea may be identifiable within and outside of their range (as wanderers/vagrants) by dark crescentic barring over the underparts. NGB birders report:
 

Gullfest 2014,  Zac Hinchcliffe,  Next Gen Birders

check out this fella picked out by Gullfesters yesterday:

Arctic Guillemot ssp. hyperborea, Hornøya Island, Varanger. 21 March 2014, Zac Hinchcliffe. The breeding guillemots here are of the Arctic form. Some have dark crescentic marking across the underparts which may be a character only found in this taxon. This individual takes the character it to a whole new level!

Arctic Guillemot ssp. hyperborea, Hornøya Island, Varanger. 21 March 2014, Zac Hinchcliffe. The breeding guillemots here are of the Arctic form. Some have dark crescentic marking across the underparts which may be a character only found in this taxon. This individual takes the character it to a whole new level!

 

hyperborea- Identification possible?

reblogged from 2012 – MG

I’m back on 13th May 2012 on  Hornøya Island, Varanger, by myself for the best part of 4 hours. Just a wonderful time amoung the auks. Specifically Arctic Guillemots, Razorbills, Puffins and Brünnich’s GuillemotsAlso Shag, argentatus Herring Gulls (including the kind of pale “is it a hybrid” types we get in winter in Britain). Otter, White-tailed Eagle, Scandinavian Rock Pipit and a lone Chiffchaff all add to the interest. Here’s a taste ; )

One which I spent a bit of time on were the Arctic Guillemots, ssp. hyperborea.

3 old taxa:

Southern Guillemot (ssp albionis) 

Northern Guillemot (nominate aalge)

Arctic Guillemot (ssp hyperborea)

Very crudely  southern albionis breed in England and Wales, and nominate ‘Northern aalge breed  in Scotland. N. Ireland probably has a bit of both (mostly Northern).

Arctic Guillemot ssp hyperborea presumed to be a rare vagrant.

Arctic Guillemots however don’t move so much (BWP) and seem to be genuinely rarer in British waters. The ‘Birds of Shetland’ (Pennington et.al.) lists just 3 records attributed to hyperborea based on measurements of tide line birds. There is a clinal aspect to characters and some features (such as extensive dark underwing ‘spotting’) while commoner in hyperborea can regularly be found in other forms.

Do Southern (albionis) and Northern (aalge) Guillemots ever show these dark crescentic marks?

Some Distinctive

So what I found was, while variation existed; some bird perhaps not really being detectable in British context, others were quiet distinctive. Most especially in having very extensive dark flank steaking. This extended right down to the legs and then out from the flanks becoming fine dark ‘crescents’ (formed by dark feather tips), which made the ‘dark streaked zone’ really very extensive on the body sides. On some these dark crescents,while weakly marked were easy to see on scope views extending right across the white underparts.

Dark spotty underwings are well known as a feature which increases in frequency as you move from Southern through Northern to Arctic breeders:

BWP indicates that while other taxa have pre-breeding moult which ends in March, hyperborea is later (from mid-April to late May). Thus these breeding adults are in spanking fresh plumage which includes, in some, obvious dark crescentic tips to the white underpart feathers. Combined with the blackish plumages, very extensive dark flanks marks, extensive dark underwing spotting- I wonder if you could ID one in Britain? Does the post breeding (July to November) moult produce this same dark crescents and if so would they be worn of in mid winter?

Do Southern (albionis) and Northern (aalge) Guillemots ever show these dark crescentic marks?

A few more shots of Arctic Guillemots:

Showing appearance on water, inc. extent of flank streaking

I notice some still moulting out of non-breeding plumage (2nd cal yrs?) nevertheless had the same extensive flanks streaking when viewed on the water. More northerly breeders more often have full dark band across the throats in winter plumage than southern birds.

One on right with more of an ‘inverted V’ where dark meets white on neck, though not as striking as on Brünnich’s Guillemots. Bird centre left with weak pale gape or ‘tomium stripe’.

And in flight, flank streaking appearance from less to more obvious (dark crescents visible on the lower one):

 

 

Introducing Dovestep & little running challenge!

Learning from the demise of the Passenger Pigeon

by Tristan Reid

Remembering Martha; the last Passenger Pigeon and running parallels with the shocking decline of the European Turtle Dove 

I am currently reading A Feathered River Across the Sky: The Passenger Pigeon’s Flight to Extinction by Joel Greenberg in preparation for writing a review for Birding FrontiersThe story of the Passenger Pigeon is very much linked to my activities in 2014; so as a prequel to my forthcoming review I thought I should share my relationship with this sadly extinct pigeon!

Martha the last Passenger Pigeon (creative commons)

Martha the last Passenger Pigeon (creative commons)

I can safely describe myself as a passionate conservationists with slightly ‘off piste’ methods! When I get an idea in my head, I tend to run with it., expand it and refuse to let it go; no matter how crazy people tell me it is! That said, my plans for 2014 are not really that extreme!

The European Turtle Dove is a beautiful bird that is one of those species that pretty much everyone will have heard of (whether they are a birder or not). It is a species that has been engrained in our culture and consciousness for hundreds (if not thousands) of years. It is without a doubt, considered and iconic British birds!

I remember hearing the evocative purring of the Turtle Dove regularly as a child every summer. I remember marveling at their aesthetics watching them singing from telegraph wires along field edges and roadsides daily during summer holidays. Sadly these childhood memories are all too distant now as this species seems to be in free fall decline. The worrying personal statistic is that I have seen more Oriental Turtle Doves in the UK in past five years than I have European Turtle Doves!

 

Turtle Dove © Jane Tavener - please check out here awesome blog: http://learndrawbird.blogspot.co.uk/

Turtle Dove © Jane Tavener – please check out here awesome blog: http://learndrawbird.blogspot.co.uk/

This is not just a UK problem either. A Dutch friend of mine told me that last year was the first year he can remember failing to see a Turtle Dove in the Netherlands!

Turtle Doves are one of the fastest declining birds in Europe. We have lost 93% of the UK population between 1970 and 2011 and there has been an overall decline in Europe of 69% since 1980.

Scary stuff!

There is hope of course; we haven’t lost this species yet! The RSPB is working hard with its partners under the umbrella of the project Operation Turtle Dove. They are building on research into the Turtle Dove breeding grounds in England; establishing feeding habitat over core breeding range through advisory and farmer initiatives and researching into factors operating during migration and at wintering areas. So there is real hope!

Knowing that we needed to raise much needed funds for and awareness of Operation Turtle Dove my good friend Jonny Rankin hatched a fantastic plan! After a bit of discussion we came up with the project name DoveStep!

Part of team DoveStep (Tristan Reid (right) & Jonny Rankin (left) Photo © Tprmod Amundsen/biotope.no

Part of team DoveStep (Tristan Reid (right) & Jonny Rankin (left) Photo © Tormod Amundsen/biotope.no

DoveStep is a 300 mile walk across the Turtle Doves historical core range; starting at the RSPB reserve Lakenheath in Suffolk and finishing in the superb Cleveland reserve RSPB Saltholme. I will be joining Arctic adventurers Jonny Rankin and Robert Yaxley for the full route of the walk. The walk leaves Lakenheath on  March 29th and arriving into Saltholme RSPB on Thursday 10th April. You can find out more about this project here: http://dovestep.wordpress.com/

2014 is a significant year in relation to pigeons and learning conservation lessons. 2014 marks one hundred years since Martha the last Passenger Pigeon dies and that species became extinct! The Passenger Pigeon was once one of the most numerous birds on the planet; yet it was allowed to go extinct. The species demise is largely believed to have been caused by habitat loss and hunting; causes that mirror the decline of the European Turtle Dove.

It is my view that we should never forget Martha and we should learn from the mistakes that allowed her species to disappear permanently from this planet. We cannot allow the same fate to remove the Turtle Dove from the experiences of our children!

I decided that I needed to build onto the work of DoveStep and use the poignancy of Martha and the significance of 2014 to continue to raise funds for and awareness of Operation Turtle Dove.

My plan is to run no less than 1000 miles (including no less that fourteen marathons) during 2014. The project is called ‘1000 miles in memory of Martha’.  You can read more details about this project here: http://www.theinkednaturalist.co.uk/1000-miles-memory-martha/

My first marathon will be a fairly grueling montane trail marathon; the Grizedale 26! It will take place on February 23rd (in just three weeks time). I need all the support an encouragement I can get for this one: so please do check out my facebook page and give it a ‘like’: https://www.facebook.com/pages/1000-miles-in-memory-of-Martha

  • You can donate to the cause  via my Just Giving page here: http://www.justgiving.com/1000milesinmemoryofMARTHA
  • Alternatively you can donate with your mobile phone by sending a text to 70070 with the code DOVE75 followed by the amount you would like to donate (£1, £2, £3, £4, £5, or £10).

If donations exceed £1000 I will have a tattoo depicting the Passenger Pigeon & Turtle Dove tattooed onto my back (what, you didn’t expect there to be any ink involved…….:-) )

 

 

Rufous Turtle Dove

Juvenile in Israel

Sometimes rarity hunting works and sometimes it doesn’t  Exploring the N Negev region with Yoav and Tristan, we headed for some excellent habitat. Plenty of  ‘expecteds’, but no hoped for Asiatic vagrants. Shachar Alterman went to the very same spot the next day and found a juvenile Rufous Turtle Dove. The imponderables of birding! Had we missed it or did it only arrive the day after our visit?

otd1

juvenile Rufous Turtle Dove, ‘meena’,  N Negev, Israel, November 2012 by finder Shachar Alterman

Twists in the Tail

A couple of days later at the Hula Bird Festival, Jonathan Merav took Tris and out exploring the southern edge of the Agamon Park. Leisurely checking roadside fields and ditches  Jonathan clocked a dove atop a dead branch- scaly all over! Tris and I locked on just as it took flight only a few metres away, close full view. A weighty bird with rows of obvious thin white wing bars traversing the upperwing, deep dark rump and white-tipped tail. A Rufous Turtle Dove! We watched it fly away , across the road, over a ridge and out of sight. Dang! Close but brief we were convinced. Couple days later I found a European Turtle Dove (by way of some comparison) in the Agamon Park and every day after scrutinised Collared Dove flocks. The bird was reported again, briefly in the middle of the festival.

the tree

Elated and frustrated. Tris and Jonathan point to ‘the spot’ at the southern end of the Agamon Park, Hula Valley.
Would have loved more views. At very least got me a chance to review Turtle Dove identification again. Here more photo of the N. Negev bird in full juvenile plumage. We have covered the subject of Oriental  Turtle,  Rufous Turtle and European Turtle Dove previously here, here and here.

IMG_5117-1

juvenile Rufous Turtle Dove ‘meena’ (above), N Negev, Israel, November 2012 by Oz Horine

IMG_1746dIMG_1745IMG_1786b

juvenile Rufous Turtle Dove  ‘meena’ (above 3) , N Negev, Israel, November 2012 by Rami Mizrachi.
Thanks very much for different things (obvious above) to Jonathan, Yoav (sorry) Shachar, Oz and Rami.
We also spent an excellent day  with Amir Ben Dove  watching gulls, but he made sure he showed us this spot by an urban freeway in Ashdod where he found  this stunning more adult-like Rufous Turtle Dove. The potential for finding  rare birds in Israel is considerable.

swedish birders X

Sorry – couldn’t resist pretending to be Swedish Birders  but we were caught in the moment!

Controversial Rufous Turtle Dove

Not always easy…

This one is for the Turtle Dove connoisseurs.

I have said it before- I think it would be relatively easy to overlook some examples of  Rufous Turtle Dove ssp. ‘meena. The wintering Oriental Turtle Dove ssp. orientalis in Oxford has refocused attention on the identification of these birds. So this one found on Linosa Island in the Mediteranean in early November 2010 is educational. I think it looks like a ‘meena’ Rufous Turtle Dove as do the finders, Andrea Corso and Michele Viganò, and co-observers Ottavio Janni and Igor Maiorano. Not all are convinced however. One of the observers, Ottavio, emailed me for comments and subsequent discussion included Andrea as well. I don’t know the taxon but I would be pretty excited if I found this baby!

Size in the field appeared “quite a bit bigger and bulkier than the 2-3 European Turtle Doves that roosted in the same area”. I can see in the photos it has thin/ weak pale tips to primary coverts, barely visible bare skin around the eye (usually obvious and extensive in European Turtle Dove),  overall plumage looks OK to me with quite extensive white in underparts. The tail pattern looks indistinguishable from European Turtle Dove (but see below). I would personally identify it as a juvenile Rufous Turtle Dove. But I have much to learn. See what you think…

Thanks to the birds’ finders and photographers for this fascinating piece.

size comparison with Collared Dove

Underwing and tail pattern

Size comparison with European Turtle Dove (on right)

Above: 5 photos by Ottavio Janni

Below: 5 photos by Michele Viganò

All of (apparent) juvenile Rufous Turtle Dove (ssp. meena), Linosa, early November 2010.

thin pale tips to primary coverts visible and limited bare skin in front of eye

Size comparison again: Rufous Turtle Dove on left, European Turtle Dove on right

More on Tail Patterns

It seems tail patterns may be more variable and not always as ‘diagnostic’ as currently thought. Paul Leader sent his photo of an Oriental Turtle Dove (orientalis) with a very white patterned tail tip (except on central tail feathers), more like ssp. meena.

An orientalis tail taken in Hong Kong with quite whitish outer tail feathers and a very reduced smudge (such that would be difficult to see in the field). Paul Leader

and below examples of ssp. meena in juvenile plumage showing extensive dark smudge on outer web of T6 (outermost tail feather) and extensive white over underparts.

Both are juvenile meena collected in September in Kashmir. USNM, photos: Ottavio Janni

Tail pattern on Oriental Turtle Dove

It’s all in the smudge

That’s the little grey smudge on the outer web of that outer most tail feather. I have only seen one photo which has ‘caught it’. Maybe there are others. Can you see it- that little smudgey grey bit? Research undertaken by Ian Lewington many years ago this pattern is spot -on for orientalis. The form meena (aka Rufous Turtle Dove) also tends to have some grey on the outer web, but not quite as extensive as this and some meena (like Turtle Dove) may have completely white outer web. Of course it also has grey (orientalis) and not white tips (meena) to the tail feathers. However Paul Leader warned in a letter to British Birds magazine some years ago that some orientalis could have whiter tips to the tail feathers- that’s why it’s all in the smudge!

Thanks to Rob Smallwood for the instructive photos.

Oriental Turtle Dove, Chipping Norton, February 2011, Rob Smallwood

Can you see the unmoulted juvenile scapular present on either side of the ‘back’?

Oriental Turtle Dove

1st winter Rainbow Bird

Very enjoyable day out with Roy and Ray. The Oriental Turtle Dove performed admirably, despite somewhat inclement weather. With a rainbow-like set of colours over its plumage, this stunning bird starlit Steve’s garden in Chipping Norton (from another v.grateful birder- thanks Steve and family). This one’s an Oriental Turtle Dove form orientalis. The other vagrant form is meena ‘Rufous Turtle Dove’. As the latter is closer in appearance to Turtle Dove = good opportunity to increase my own awareness of the characters of all 3.

Oriental Turtle Dove, Chipping Norton, Oxford, 22 Feb 2011 (above 3 photos). Has undergone considerable post- juvenile moult, including most of the primaries. The breast was deeply pigmented with brown tones and no real sense of obvious whiteness in ventral region- kind of mostly dark unders paling to greyish off-white in ventral region. I didn’t see it but Ian Lewington says on good views the dark bleeds onto the outer web of T6 (outermost tail feather).

Brett Richard sent some very helpful photos of a juvenile Rufous Turtle Dove, ‘meena’ at Al Ghaftain, Oman, taken on 18 November 2009. ( I think it might be a vagrant here?). I also put up a profile shot next to juv/1st winter Turtle Dove on Shetland on 7th October 2010. First views of this Turtle Dove was in flight. As it was the 2nd week of October, in an area I had seen both Taiga Flycatcher and Sykes’s Warbler- I figured, at least, it demanded a second look! I have often wondered if I might ‘throw away’ a young ‘meena’ Rufous Turtle Dove, because of the appearance being closer to Turtle Dove. So this was a chance to gen up.

Compare the 2 photos below. The first is a virtually full juvenile Rufous Turtle Dove, the second a juvenile (moult begun) Turtle Dove. What features would I go for in future? See the crisp orangey fringes to primaries and the more extensive filled in dark on the scapulars and tertials on the Rufous T.D. Then I might check the bare flesh around the eye (more obvious/ extensive on the Turtle Dove), and maybe if I could see them, check the tips of the primary coverts- tiny pale tips on the Rufous T.D. more obvious (when visible!) pale tips on the Turtle Dove.

Turtle Dove can have strong blue tones on back/ upper rump (see photo directly above) Tresta, Fetlar, Shetland, 7th October 2010.

Below: juvenile Rufous Turtle Dove (meena), Al Ghaftain, Oman, 18 November 2009 -showing rather extensive white in the underparts, compared with the extensive dark tones on the Chipping Norton bird. Thanks Brett- very helpful!