Avocets

Yours truly together with Andy and Will visited the Sand Martin colony on Wednesday where we caught 25 martins. Here’s a LINK  to that day for readers to catch up. 

During our 4 hours of work with the Sand Martins we noted a pair of Avocets across the more distant, quieter area of the farm that has less traffic from farm vehicles. The larger farm contains fishing lakes where anglers often occupy the wet edges of two other pools that would otherwise be attractive to Avocets and the like. The Avocets were very vocal across a wide area and engaged in aggressive bouts of chasing off passing crows and gulls. as well as surveying us from above.

It seemed fairly obvious that the adult birds had youngsters in tow and were in the process of showing their chicks the ropes while letting them explore their immediate birth area. It’s a process that birds must go through so as to prepare youngsters for when they go it alone. 

 

Avocet

 

We three met up again this morning in the hope of locating and then ringing the chicks, Andy with his trusty landing net, me and Will with binos and sharp eyesight respectively.  Three heads and three sets of eyes are better than one when finding wader chicks that can run, hide, swim or submerge, often all three. 

And so it proved. As soon as we approached the pool we thought might be the one we saw three chicks almost together at the edge of the pool, chicks of the perfect size for ringing. Within a couple of minutes all three Avocet chicks were in the landing net, then quickly ringed and released to their parents close by. 

Avocet

Avocet chick

Avocet chicks

Avocet

Avocet

Note: Avocet Recurvirostra avosettta is a specially protected species. 

All birds are protected in some form, but some species have additional protection during the breeding season as do their nests, eggs and dependent young. To disturb Avocets and other species we have a special licence in advance. 

In England and Scotland, permits for ringing and/or nest recording are issued by the BTO on behalf of the relevant Country Agency; licences for other activities are issued directly from Natural England or NatureScot. In Wales, all licences are issued directly by Natural Resources Wales but ones for ringing and/or nest recording are applied for via the BTO, British Trust for Ornithology.

Log in soon folks. You never know what might be in the news with Another Bird Blog.

 

After The Thunder

Monday evening saw thunder and lightning rolling around the area followed by late night downpours. But we stuck to the pencilled in plan and hoped everything would be on song for Tuesday 0630, a visit to the Sand Martin colony at Cockerham. 

Tuesday morning began fine, the rain and thunder long gone to leave a cool, almost idyllic morning at the colony. The 0630 start had left the birds a couple of hours or more feeding time before we intruded upon their space. 

Two previous visits of 17 April and 26 May saw a total of 32 captures, 17 females, 14 males and one indeterminate sex of the April visit. This almost mid-June visit would almost certainly result in a catch containing a percentage of youngsters and thus, together with noting brood patch progress, assessing the breeding success of the colony so far. 

The colony is concentrated in one small area of the quarry face and estimated to be 60/70 active holes, not huge by Sand Martin standards but the only Sand Martin colony for a good number of miles around and therefore a valuable and unique addition to local flora and fauna. 

Sand Martin colony

 

We caught 25 on this latest visit, 12 adults (9 male, 3 female), three of them recaptures from earlier in the year; and 13 juveniles of the year. 

Adult Sand Martin

Juvenile (3J) Sand Martin

 

We sex Sand Martins and many other species by examination of their cloacal protuberance in the case of males, and for females by her brood patch (bare belly) progress. Males of some species develop a partial brood patch that is not as extensive as that of a female, a bare region of the undersides that at the peak of incubation lacks any feathering at all. 

Almost all birds incubate their eggs: keeping them warm while the embryo develops into a chick. In order to transfer heat better from their body to the eggs, many birds develop brood patches (a.k.a. incubation patches). The bird loses feathers from the belly, and the bare skin becomes wrinkly and swollen with fluid. Brood patches are a good way to tell what breeding stage a bird is at, since usually the brood patch begins to develop during nest building, becomes very swollen with fluid during incubation, and then declines. 

Brood patch

 

Juvenile Sand Martins that spend a couple of weeks in their nest tunnels often emerge carrying swollen and unsightly blood sucking hippoboscid ticks that have attached their body parts through feathers and into the birds’ skin. The one pictured below had six such ticks on its head.

Sand Martin

We can remove the insect with a careful grasp of the blood-filled tick using ringers' pliers and then a slow and gentle twist & pull action that releases the parasite. 

A bonus came with the catch of a feisty second summer male Kestrel when it tried to snaffle a Sand Martin but didn't count upon a mist net across it's normal approach line. There was some evidence of predation of the colony by the amount and type of feathers on the ground immediately below the nest holes.

Kestrel

Kestrel

All in all a very successful morning. Back soon with more news and views from Another Bird Blog.

Linking today to Eileen's Saturday blog.

Sunny Days

Here in coastal Lancashire we’ve had no rain for four weeks and the summer is beginning to look like an old-fashioned one but where the inevitable thunderstorms are due this evening and into Sunday. This should remind us that this is Britain and not the Sahara Desert. 

It’s similar across the country where millions of people are out enjoying the weather, despite the UK Nanny State who think that the public cannot understand a weather forecast so choose to bombard us with Health Heat Alerts to ramp up the global warming scare at every bit of sunny weather. They really do take us for fools who they can continually scare, manipulate and thus control. 

On my Pilling travels on Friday it was hard to miss the dried out landscape and the lack of rain puddles in familiar places. Birds were laying low, many feeding young and others simply hard to find. Along a track lined with reeds and vegetation I found Common Whitethroat and Sedge Warbler, both still in song and seemingly yet to reach the stage of collecting food for nestlings. 

The breeding year was slow to start, an April and early May of cold northerlies and late arrivals of African migrants. Even now there appears to be a shortage of Reed Buntings, House Martins, Swifts, Swallows and even Wrens. Those of us close to the action think that there could be Avian Flu in passerines and small birds. But how would we know when millions of small birds die of both natural and unnatural causes and then simply go missing never to be found? 

The Whitethroat is pictured against a green background of newly growing maize crop, the Sedge Warbler against a freshly cut and now parched field of silage. The bokeh of the Sigma lens is really good at most times.

Sedge Warbler

Whitethroat

A couple of Lapwings inspected in turn a newly sown seed plot and then a two inch high maize crop. The Lapwings may have failed their first attempt at raising a family so may return and lay in what appears ideal and now undisturbed spots. If we get rain both crops will thrive and grow like giant beanstalks so it’s a hard decision for the Lapwings. 

 

Lapwing

Little Egrets have been thin on the ground just locally until one appeared below my slowly moving car hide. Along another ditch a Buzzard stood sentinel and then took off to circle and find the rising thermals. 

Little Egret

Buzzard

The cut silage field had half a dozen Curlews scratching a living on the rock hard ground. Even in the height of summer it is not difficult to find handfuls of upland waders that return quickly to the coast when their upland adventures turn sour. Soon there will be masses of both and it will be interesting to see how the inland wader season fared. Just last week Curlews gave me a hard time and something of the run-around when I tried to picture them in their other world, the uplands of the Pennine Hills.

Curlew

I found a couple of Oystercatchers hanging around on gate posts where they seemed unconcerned at my being close by as if they had no young in tow.

Oystercatcher

Once the rain leaves us there's a visit to the Sand Martin colony planned mid week. We need a light easterly and not much sun that will light up our mist nets. 

Log in soon folks. And enjoy the sun. Winter will come soon enough. You know it makes sense.

Linking today to Eileen's Blogspot.

 

Stuck For Time

I am a little stuck for time this weekend. Therefore here’s a selection of recent photos but previously unpublished on the blog. A few from the recent holiday to Skiathos, Greece and some from local visitations to the hills north of Garstang, and an obliging Grasshopper Warbler from Pilling.

The Grasshopper Warbler was seen May 2nd, the day before we set off for Manchester Airport at 2am Wednesday 3rd May. The morning was grey and windswept and not the best for pictures.

Grasshopper Warbler

Grasshopper Warbler

A few birds ringed the same day as the "gropper" - adult Reed Warbler, adult female Chaffinch and a rather nice adult male Reed Bunting. 

Reed Bunting

Reed Warbler

Chaffinch

Here's a few from Skiathos. 3-17 May. 

Before the grey shrike came close the long range views below helped separate out Great Grey Shrike versus Lesser Grey Shrike. A Lesser Grey Shrike shows long wings (long primary extension), relatively short, rounded tail, and stubby-looking bill. It was probably 25 years since my last LGS and 5 years since a GGS. 

Lesser Grey Shrike

 A spectacular European Roller made for a brilliant hour or so until it presumably flew off north, across the Aegean Sea to Europe, perhaps mainland Greece itself. It lived up to the book descriptions of "favouring open country with scattered trees and woodland patches. Mostly seen singly or in small groups perched on prominent spots such as bare snags or wires". 

European Roller

European Roller

Skiathos has both Red-rumped Swallow and Barn Swallow as resident breeding species and also as migrants spring & autumn. Both species seemed to be at similar stages of nest building by collecting mud from tracks and rain filled puddles. 

Red-rumped Swallow

The photo below shows how a Little Owl was able to play hide and seek. If it wasn't in the mood for posing it would walk down under the corrugated roof and disappear from sight until later. 

Visitors to Skiathos always hear the nightly monotone calls of the common Scops Owl even if they hardly ever see one. Meanwhile the less vocal Little Owl, a perhaps unlikely member of the birds of Skiathos, stays out of the limelight.

Little Owl

Bringing everything up to date here are some photos in the hills near Garstang from this week.

Red-legged Partridge

Redshank

Lapwing

Curlew

Back soon with Another Bird Blog. Linking this weekend to Eileen's Blogspot.

Ixobrychus minutus

Today I share pictures and thoughts about Little Bittern Ixobrychus minutus,  the smallest of the breeding herons of Europe, a shy, secretive bird, a species seen on a recent trip to Skiathos, Greece. This is a much sought after bird by British birders, one that rarely occurs here but one that causes a stir when it does. I have seen Little Bitterns in the Mediterranean and in the UK too, but have never watched them as closely and for such long periods as the ones in Skiathos. Click the pics for  large size pictures.

Wherever it occurs the Little Bittern is uncommon to locally fairly common but secretive and easily overlooked. This is a tough bird to see because of its tiny size,about that of a pigeon, and its plumage and camouflage skills. Little Bitterns like fresh marshes and wetlands with reed beds, where they clamber high in reeds as well as feeding low along edges. Most likely to be seen in flight, early or late in the day, low over reed beds. Very small for a heron, and rich buffy overall with black cap. A large pale panel on upper wing visible in flight; male has dark back, female back streaked. 

Little Bittern - Bright green = summer. Dark Green = winter.

 

I thought I got lucky in May 2022 when for a day or two I had close views of a female Little Bittern. On some days it would slide through the reeds and then seemingly disappear; but it was there, silent, immobile and made invisible by its camouflaged colours of reed stems, greenery and sunlight, waiting for me the intruder to leave. 

Little Bittern

 

Little Bittern

And then in early May 2023 I had the extreme good fortune of finding an altogether more accommodating male Little Bittern in the exact same spot. Here I was able to pick & choose to watch over several days of our fourteen day trip to the island. Luckily the bittern was just yards from a favourite beach where long suffering wife Sue was able to indulge my obsession while enjoying the Greek sunshine. 

Little Bittern

Little Bittern

Little Bittern

 

The bitterns were in perhaps the most unlikely looking spot, a three foot wide reed lined ditch fed by water run off from the nearby hills mixed with saline water from the Aegean Sea just metres away. The giant reeds of Skiathos are more like a bamboo, very tall, dense and extremely tough, quite unlike the phragmites reed of the UK. 

Aselinos, Skiathos

 

The ditch contained a fair amount of detritus that is found on so many beaches of today’s world - lumps of polystyrene, drink cans, plastics and paper cups. All in all, not a salubrious spot to bird! However the ditch holds a population of Greek stream frog Rana graeca, an attraction that explains the continued presence of a predator like Little Bittern. 

Greek stream frog Rana graeca

Greek stream frog Rana graeca

The bittern faced another hazard in the form of the local herd of 50/70 goats which roam the hills and fields of the north of Skiathos where the mix of landscape provides variety to their all inclusive diet. The goat’s regular route in 2023 included a five minute crash through the bittern’s favourite patch of mud and reed where they grabbed a munch of bamboo before moving along the buffet trail.

Goats of Skiathos

Goat Dog and Goatherd

All the while, the bittern watched and then came back to feed once the animals had moved on. 

Little Bittern 

Little Bittern

Little Bittern

 

Little Bittern

 

Little Bittern

The list of “Birds of Island of Skiathos” (sic), The Systematic Classification of Skiathos Birds”, Presidential Decree 86/1969 Greek Legislation” does not include Little Bittern. The list is rather short, containing a modest list of species with a number of both likely and definite omissions, species I have seen on the island over a number of years e.g. Great Egret, Red-throated Pipit, Richard’s Pipit, Lesser Grey Shrike, Wryneck, Whinchat. 

The lack of a complete list is not wholly surprising as Skiathos has no resident birdwatchers and very few visiting birders to what is essentially a tourist destination of sunny beaches with limited birding opportunities. And dare I say, the birding concept has yet to catch on here. The average Greek would never be seen out birdwatching with a pair of binoculars around their neck, least of all, a Greek man! 

There is no doubt that Little Bitterns are scattered across Skiathos at least in the springtime. Whether they breed on the island is anyone's guess. There is a large population of Little Bitterns at Lake Mikra in Macedonia, Northern Greece and it could be that early May sightings in Skiathos are migrant birds heading north. 

In Skiathos there’s lots of reedy bamboo and a good population of frogs to be had from reed lined drainage ditches that run from the hills down to the coast. I got lucky by not having to sit around for hours looking in likely spots as tourists in shorts and T shirts hung around nearby bars, beaches and sunbeds while giving me curious looks. Each to his own. 

Will I be going back to Skiathos and being the only birder on the island? You bet. 

Fifteen weeks to go and counting.  I’m sure I can add to that list again when those September birds come along.

 

 

Goldfinch To France

News arrived of juvenile Goldfinch ALP8579 we caught and ringed at Oakenclough on 17 August 2022, when according to this blog : ‘Nothing much happened except for visible migration of more than 120 Swallows heading west in small groups together with several House Martins and a single Sand Martin. Invisible migration/new arrivals consisted of just 11 captures - 3 Blackcap, 2 Willow Warbler, 2 Meadow Pipit, 2 Goldfinch, 1 Goldcrest and 1 Chaffinch.’ 

Well something certainly happened later because one of those two Goldfinches was recaptured by French ringers on 7 January 2023 at Montmorillon, Vienne, some 143 days and 873 kms after our first capture. 

Goldfinch to France 2022 - 2023

  

Juvenile Goldfinch (3J)

 

Goldfinch migration - migrationatlas.org

 

From https://migrationatlas.org “Ringing recoveries identify three main connections between breeding populations and wintering regions. Birds from the British Isles move to the continent in a S or SE direction, with most winter records from the Netherlands to Spain (a few in Morocco). Birds from West, Central and East Europe move to the SW, though population from northern Italy, the Balkans up to Poland and the Baltic states move either to South West or to South East Europe. Birds recovered in North Africa (mainly Morocco) originates from South West but also West Europe.” 

Our UK Goldfinches are more migratory than many people realise, perhaps more noticeable when a garden that is usually full of Goldfinches becomes less crowded at the onset of cold weather. Our Goldfinch ALP8578 conformed to the migration behaviour and routes shown above. As a young bird born in the summer of 2022 it was just a matter of weeks before its inherited genes and DNA kicked in and sent it flying to the south of France many miles from its birth place. 

Log in again soon bird lovers. I think we are catching Sand Martins later in the week if winds stay low and from the east. 

Linking today to Eileen's Saturday.