Showing posts with label israel. Show all posts
Showing posts with label israel. Show all posts

Saturday, 2 April 2016

A few thoughts on the Israeli Red-billed Teal

In early March I spent a long weekend in Israel, where the primary target was the long-staying Bateleur (which we saw). A real bonus was hearing of the continued presence of the Red-billed Teal in the northern Arava, 're-found' by visiting Finns Seppo and Hannu and seen shortly afterwards by visiting Brits Chris Bell et al. As we were at the Arava junction of Routes 40 & 90 when Chris' SMS came through on 5th, we bolted straight up to Hazeva and saw the bird pretty well in the strong mid-afternoon light, though it was very wary and was mainly seen in flight.

Red-billed Teal, Hazeva, Israel, 5 March 2016

Long before the trip I'd been a fan of this bird being the real deal. Israel boasts the only previously accepted Western Palearctic record of the species (in June - July 1958) and of course has a strong track record with producing extremely rare sub-Saharan African vagrants. Barak Granit wrote an interesting article on the Israel Birding Portal website which coherently summarises where we are seemingly at regarding this latest bird. His conclusion was that it's ultimately still up for debate, though Barak seemingly falls on the pro-wild side (e.g. "An escape scenario is just plausible as well, but the evidence doesn't support such a scenario").



Red-billed Teal, Hazeva, Israel, 5 March 2016

Since reading this it's become apparent that some members of the IRDC are seemingly not keen on accepting the bird as wild (words such as "dodgy" have been used by the committee and apparently the suspicion is that it will be rejected). More digging seems to throw up two primary reasons for this:
  1. The bird is behaving in sedentary fashion (i.e. it has been in Israel for two years and currently shows no signs of leaving)
  2. The bird has hybridised with a Mallard
To me, neither of these factors suggest captive/escaped origin and are certainly not detrimental to the idea that the Arava Red-billed Teal is a wild bird. Personally I think it is disconcerting that anyone could be dismissive of the bird based on the above two factors, though of course others don't share my view. Allow me to elaborate ...

The bird's sedentary nature

Here I quote BirdLife International (2012): "This species is mostly sedentary or nomadic, but may disperse long distances (up to 1,800 km) in the dry season depending on the extent of flooding".

Red-billed Teal is a species that often moves based on the availability of water. If suitable habitat is present, it does not need to move. If water is not available, it has the ability to move large distances. If it is normal for this species to disperse the best part of 2,000 km in search of water, imagine what a vagrant might achieve? Red-billed Teal routinely occurs as far north as Sudan. From here it is really not that far to travel to southern Israel, particularly when you consider the Nile acting as a northward funnel for sub-Saharan species. If a vagrant teal is driven north by a lack of water, it could feasibly end up in southern Israel (as many other African species have previously). If it then finds a constant water source to its liking, as this bird has, why would it need to move? The current notion to reject the record based on its sedentary nature (a completely natural part of the species' ecology) therefore doesn't make much sense.


One should also consider other examples of long-staying African vagrants. Israel currently has one (the Bateleur on the Judean Plains has now been present for almost a year), possibly two (Yellow-billed Stork in Bet She'an potentially present a year or more?). Elsewhere there is a long-staying and regularly returning Grey-headed Gull in Italy (currently present for its fourth calendar year) and, as of March 2016, Cape Verde continues to host a single Black Heron (this bird having originally turned up alongside another in March 2011). Before this there was a Black-headed Heron there for over two years. These are just recent examples and there are no doubt many more.

Hybridisation

Barak Granit refers to the occurrence of hybrid offspring alongside the Red-billed Teal as "much more worrying", but I do not agree with this. Dabbling ducks (Anatinae) are notorious for rife hybridisation, particularly among vagrants. It is a fact of life that Anatinae are very much advocates of 'free love' - hybridisation between species occur in normal circumstances, and not just in a vagrant context (where a lost individual will naturally look to breed with its closest available relative, if possible). If this is genuinely being used as a factor against the Israeli Red-billed Teal then, using the same logic, we should look to reject all those American Black Ducks that interbreed with Mallards in Britain, Ireland, the Azores and so on. Similarly any vagrant American Wigeon breeding with its Eurasian counterpart (or indeed Green-winged Teal with Eurasian Teal etc) would therefore be discounted as a wild bird. The fact that the Arava Red-billed Teal has bred with a Mallard at some point is, in my opinion, normal behaviour for a wild bird and in no way should be viewed as an indication of a captive/wild bird. Hybridisation is a true red herring in the 'wild or escape' debate.




On 5 March 2016 the Red-billed Teal was seen alongside two hybrid offspring - both of which are pictured in the images above. The mixture of RBT/Mallard features is quite obvious.

If you consider this in addition to the fact that Red-billed Teal is an abundant species in Africa with a massive range, the fact that none have been known in captivity in Israel for over a decade (though of course this does not discount the possibility of an escape from another country), that the bird is extremely wary and does not allow a close approach whatsoever (atypical behaviour for an escape), that Israel regularly attracts Afrotropical vagrants (including several long-stayers at present) and already has an accepted record of this species, I believe the evidence points towards this being a wild bird, despite the IRDC's reported reservations ...

Wednesday, 8 May 2013

Israel Trip Report, March 2013

Below is a copy of my Israel trip report for March 2013. As with my Moroccan article, you can read, download or share the document at your will. Hope it comes in handy!


Sunday, 7 April 2013

Isabelline Wheatear


We spent a couple of hours around the expansive plains near Urim on our penultimate afternoon in Israel, although predictably we were a tad late in the season for huge flocks of sandgrouse and assorted raptors. That said, we did see a couple of Merlins and a pair of particularly showy Isabelline Wheatears which, in the evening light, provided an irresistable opportunity for photography. Utilizing some pretty good team tactics, we all managed some pleasing images. I must admit I've never really understood the difficulty in seperating these things from Northern Wheatears - particularly with good views. There's just something about their bulk and demeanour that is instantly recognizable. Anyway... great birds.






Wednesday, 3 April 2013

Israeli migrants


We didn't exactly experience vintage spring migration in southern Israel during our trip - in fact it was generally quite poor. By the sound (and looks) of things, it's been a 'wet' winter in the Negev this year and as a result green areas are more widespread than normal, which obviously doesn't help to concentrate migrating birds. That said, one or two sites proved consistently productive throughout the week, with one these being the wadi at k76-77. Here I had four new birds (Asian Desert Warbler, Hill Sparrow, Bimaculated Lark and Cretzschmar's Bunting) among the good numbers of migrants, including as Tawny Pipits, Short-toed Larks, Lesser Whitethroats and wheatears of varying flavour - all grounded by the persistent (and often brisk) northerly winds during our trip. Despite plenty of birds, obtaining photos was actually pretty hard as most were pretty wary and would fly whenever you got within reasonable distance.

Hill Sparrow


Cretzschmar's Bunting


Bimaculated Lark


K19-20 were also pretty productive throughout our stay, although the species range was obviously quite different given the saltpans and other waterbodies here. It was the only place we saw Water Pipits regularly, while there were plenty of migrant waders including Marsh Sandpipers and the ditch at k19 held Baillon's, Little and Spotted Crakes with a Water Rail thrown in for good measure!

 Red-throated Pipit

 Water Pipit

Little Crake

Purple Heron

Cyprus Wheatear






This Cyprus Wheatear was probably the pick of grounded migrants observed at k76 during the week. These photos were taken in the heat of the day hence they're a little hazy and the light is harsh; the bird also proved incredibly difficult to get close to - even in the car! Nice bird though and the first I've seen since my dad showed me them on family holiday to Cyprus in 1996, so more or less like a lifer. Note the tail and rump pattern in the fourth shot down.

Tuesday, 2 April 2013

Lapwings at k20 saltpans



This White-tailed Plover was one of the highlights of the week for all of us. Only the second individual I've seen after the Caerlaverock bird several years ago, it goes without showing that this one showed a little better!


Spur-winged Plovers are trash birds in Israel, but they're bloody smart. For some reason, this is the only decent shot of one I took all week despite their abundance!

Monday, 1 April 2013

Israeli residents

A selection of photos of resident Israeli species, both common and scarce.



Arabian Warbler


Arabian Babbler

Desert Lark

Blackstart

Namaqua Dove

Yellow-vented Bulbul

[Eastern] Mourning Wheatear at nest site

Saturday, 30 March 2013

Black Bush Robin

Bush Robin at dawn

Though far from guaranteed to turn up, Black Bush Robin is a species that many visitors to Israel hope to see on an early spring trip. On our outward journey from Luton we had vowed that, if one were to turn up, we would make an effort to see it as soon as was possible and thus receiving news of two birds at Neot Smadar on 16th saw us driving south from the Dead Sea late that evening. After an hour or two searching Yotvata unsuccessfully for Egyptian Nightjars in a delirious state, we eventually settled in the car for an hour's kip at Shizzafon sewage works. Soon after dawn, we were out and quickly located the bird showing well although it wasn't until the sun came up that we managed some half-decent pics - my camera settings were a bit off so the shots aren't as nice as I had hoped:






As it turned out, March 2013 proved an excellent period for the species in Israel with as many as six birds found in the south of the country. We even saw the second bird at Ne'ot Smadar the following day:

Thursday, 28 March 2013

Category C: it's the place to be

Common Myna



Vinous-breasted Starlings

One of the great joys about being keen on your Western Palearctic list is the unique opportunity it gives you to spend large quantities of time searching for introduced, self-sustaining populations of alien bird species. These populations are often quite small, making them difficult and challenging to locate and, to cap it all off, the general close proximity of these populations to human settlement means that you regularly get to visit places that you'd never normally go to - in many cases quite rightly so. However, our Cat C hunt in Israel took us to some genuinely pleasant places: though we didn't see the Nanday Parakeets (over two visits!) we found Pardes Hanna a quaint little town with plenty of other birdlife (think White-throated Kingfishers, Syrian Woodpeckers and Palestine Sunbirds), and watching Common Mynas and Vinous-breasted Starlings in Hayakron Park, Tel Aviv was almost like being back in Bangkok - were it not for the Monk and Ring-necked Parakeets zooming around the place!