Pied Surprise

It’s a week since my last posting. In between has seen rain, rain, then more rain, and no chance of birding, ringing or lifting a camera. Given all the foul weather I was not surprised by news from Chris at Cockerham where after two days of relentless wind and rain he found a dead Avocet youngster, one of the chicks ringed on 24th June. 

Avocet chick 

It appears that during the bad weather the adults moved the chicks from open water to a more sheltered part of the farm but at least one succumbed. Let’s hope there are no more fatalities. Fingers crossed too that the Avocets return here in 2021. 

Avocet 

On the strength of different forecasts Wednesday morning was pencilled in as a “maybe”, and Oakenclough as the venue. The previous visit of July 1st saw the first real hints of autumn migration. 

This morning I met up with Andy and Bryan at 0630 to a 15-20 mph easterly wind, far stronger than several forecasts that all suggested 6-8 mph. After each of us had driven 40 minutes or more we decided to continue in the less than ideal conditions in the hope the wind would drop. 

As the morning wore on the wind dropped slightly and allowed us a reasonable catch of 24 birds – 21 birds of the year and three adults: 5 Willow Warbler, 4 Great Tit, 3 Chiffchaff, 2 Blackcap, 2 Chaffinch, 2 Greenfinch, 2 Goldcrest, 1 Wren, 1 Dunnock, 1 Goldfinch, 1 Pied Flycatcher. 

Oakenclough springs a few surprises on most days. Our surprise today was the juvenile Pied Flycatcher. It’s a species we never catch in mist nets despite the fact that Andy rings many nestlings from boxes a quarter of a mile away. 

Pied Flycatchers are notorious for arriving unseen on their breeding sites and then leaving in autumn equally undetected. This one, AKE3941 was ringed at the nest box along with three siblings on 28 May 2020. 

Pied Flycatcher 

 Pied Flycatcher - juvenile/first summer

Greenfinch - juvenile/first summer

Chiffchaff - juvenile/first summer 

Willow Warbler - juvenile/first summer 

Strong early winds didn’t help our birding, a highlight being a passing Peregrine Falcon as it dive bombed a local Buzzard. Otherwise a few Swallows, a Great-spotted Woodpecker, Pied Wagtail and the arrival of autumnal Goldfinches around the feeders. 

Back soon. Don’t go away.

Linking today to Eileen's Saturday Blog and Anni's Blog.

Boxed In

We’re not so much boxed in. More like locked in and fastened down until the experts say it’s safe to go outdoors. I doubt we’ll get to check nest boxes in 2020.

Here’s a previous visit to nest boxes at Oakenclough at the foot of the Pennine Hills back in the early summer of 31 May 2015. 

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As promised, here is an update on a visit to Oakenclough on Saturday to check with Andy the progress of his nest boxes. 

The target bird for the nest box project is Pied Flycatcher (Ficedula hypoleuca), a small passerine bird of the Old World flycatcher family and part of a group of insectivorous songbirds which feed by darting after insects. 

Pied Flycatcher

This flycatcher winters in tropical Africa, spending the summer in the northern hemisphere but as far south as the Iberian Peninsula where it is quite common. 

Pied Flycatcher  

Pied Flycatchers breed in upland broad-leaved woodland. This means that in Britain they are limited due to geography mainly to the North and West where they prefer mature oak woodland with natural tree holes, i.e. dead trees, or dead limbs on healthy trees. 

The species also takes readily to nest boxes with high horizontal visibility, in woodland where there is a low abundance of shrub and understorey, but a high proportion of moss and grass for their nests. 

Andy - checking a box 

As is usually the case,  a good number of the boxes checked were occupied by Great Tit or Blue Tit with the adults still brooding tiny youngsters or sitting on clutches as low as 4 eggs or as high as 14 eggs. Given that the weather in the month of May has been mostly poor, the progress so far has been better than expected. 

Pied Flycatcher 

We found one box contained Nuthatches and ringed 6 youngsters. Four boxes were occupied by Pied Flycatchers where we found females sitting on either 6 or 7 eggs and where by a week or so the youngsters will be large enough to be ringed. 

The eggs of the Pied Flycatcher are about 18 mm by 13 mm in size, pale blue, smooth and glossy. The female builds the nest of leaves, grass, moss and lichens, and then lines the cup with hair and wool. The duties of incubating the eggs are performed by the female with the newly-hatched young fed by both adults. 

Pied Flycatcher nest and eggs

Pied Flycatcher

The eggs of the Pied Flycatcher are about 18 mm by 13 mm in size, pale blue, smooth and glossy. The female builds the nest of leaves, grass, moss and lichens, and then lines the cup with hair and wool. The duties of incubating the eggs are performed by the female with the newly-hatched young fed by both adults. 

The Pied Flycatcher is a well-studied species, partly because of its willingness to use nest boxes provided by bird watchers and bird ringers. 

Detailed study has found that Pied Flycatchers practice polygyny, usually bigamy, with the male travelling large distances to acquire a second mate. The male will mate with the secondary female and then return to the primary female in order to help with aspects of child rearing, such as feeding. There are a number of theories around how this apparently poor system benefits the species, but no one knows for sure except that in practice it does work. 

In 2005 the European population of Pied Flycatcher was estimated at up to 12 million pairs, helped in part by the provision of nest boxes in parts of the species’ range. We checked our ringing site for Willow Warbler nests and found at one nest a brood of tiny youngsters, at another nest a female sat on 6 eggs. Dotted around the site a good number of males are in steady song with little sign of their mates, suggesting that most are still at the stage of incubating eggs. Willow Warblers are now a little late this year, no doubt as a result of the poor Spring weather to date. 

Willow Warbler

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Fast Forward to 2020. People aren’t perfect. Some slow to adjust while others appear to be in denial that coronavirus is something to be taken seriously.  The vast majority are trying to stick to the rules as best they can while doing the necessary to put food on the table and stay sane.

Back soon with Another Bird Blog.

Until then, linking with Eileen's Blogging.

Birding In The Box

As promised, here is an update on a visit to Oakenclough on Saturday to check with Andy the progress of his nest boxes. 

The target bird for the nest box project is Pied Flycatcher (Ficedula hypoleuca), a small passerine bird of the Old World flycatcher family and part of a group of insectivorous songbirds which feed by darting after insects. This flycatcher winters in tropical Africa, spending the summer in the northern hemisphere but as far south as the Iberian Peninsula where it is quite common. 

Pied Flycatcher

Pied Flycatchers breed in upland broadleaved woodland. This means that in Britain they are limited due to geography mainly to the North and West where they prefer mature oak woodland with natural tree holes, i.e. dead trees, or dead limbs on healthy trees. The species also takes readily to nest boxes with high horizontal visibility, in woodland where there is a low abundance of shrub and understorey, but a high proportion of moss and grass for their nests. 

Andy - checking a box

A good number of the boxes we checked were occupied by Great Tit or Blue Tit with the adults still brooding tiny youngsters or sitting on clutches as low as 4 eggs or as high as 14 eggs. Given that the weather in the month of May has been mostly poor, the progress so far has been better than expected.   

We found one box contained Nuthatches and ringed 6 youngsters. Four boxes were occupied by Pied Flycatchers where we found females sitting on either 6 or 7 eggs and where by a week or so the youngsters will be large enough to be ringed. 

Pied Flycatcher

Pied Flycatcher

The eggs of the Pied Flycatcher are about 18 mm by 13 mm in size, pale blue, smooth and glossy. The female builds the nest of leaves, grass, moss and lichens, and then lines the cup with hair and wool. The duties of incubating the eggs are performed by the female with the newly-hatched young fed by both adults. 

Pied Flycatcher nest

The Pied Flycatcher is a well-studied species, partly because of its willingness to use nest boxes provided by bird watchers and bird ringers. Detailed study has found that Pied Flycatchers practice polygyny, usually bigamy, with the male travelling large distances to acquire a second mate. The male will mate with the secondary female and then return to the primary female in order to help with aspects of child rearing, such as feeding. 

There are a number of theories around how this apparently poor system benefits the species, but no one knows for sure except that in practice it does work. In 2005 the European population of Pied Flycatcher was estimated at up to 12 million pairs, helped in part by the provision of nest boxes in parts of the species’ range. 

We checked our ringing site for Willow Warbler nests and found at one nest a brood of tiny youngsters, at another nest a female sat on 6 eggs. Dotted around the site a good number of males are in steady song with little sign of their mates, suggesting that most are still at the stage of incubating eggs. Willow Warblers are now a little late this year, no doubt as a result of the poor Spring weather to date. 

Willow Warbler

We’re promised warmer weather for mid-week - let’s hope so. 

Linking today to Stewart's World Bird Wednesday.

CES Menorca Style

During my recent Menorcan fortnight I spent a morning with Javier Mendez helping out at his Constant Effort Ringing site near Mahon. It was the first visit of the 2014 Constant Effort regime whereby a comparable ringing session is carried out every 14-21 day period. The site is a working farm of crops and animals managed in an ecologically sustainable way.

Menorcan farm gate

Not only is Javier an extremely nice guy but he is very knowledgeable about Menorca and its flora and fauna. His website Menorca Walking and Birds offers tours of all sorts to experience the sights and sounds of Menorca. 

Javier Mendez

Javier Mendez

Javier and I caught 45 + birds including a good number of everyday “UK” birds like House Sparrow, Greenfinch, Goldfinch, Great Tit and Chaffinch, and also included more exotic fare like Turtle Dove, Nightingale, Cetti’s Warbler and Sardinian Warbler. We didn’t catch the resident Woodchats or a Hoopoe, and certainly not the Stone Curlews which provided a backing track to the morning’s work, but we did catch a migrant Redstart and a stunning Wood Warbler. 

Redstart

Wood Warbler

There are a good number of Turtle Dove in Menorca. Generally they are a shy species and keep a very safe distance, but in some resorts where pines and gardens flourish they seem to have lost their natural aversion to man and happily walk the footpaths with almost total disregard for passing tourists. 

Turtle Dove

Turtle Dove

The Spotted Flycatcher we caught was of the subspecies Muscicapa striata balearica, paler and smaller than the nominate race that migrates a long way north of the Balearic Islands of which Menorca is part. 

It is much harder to tell the two races apart in the field in early May when large numbers of migrants pass through Menorca on their way to Northern Europe. 

Spotted Flycatcher - Muscicapa striata balearica,

Spotted Flycatcher

Pied Flycatcher

Pied Flycatchers are strictly migrants on Menorca although they have been known to hang around nest boxes in the Spring until evicted by the Great Tits. There are no Blue Tits or Long-tailed Tits on Menorca. Apart from Ravens on the rocky outcrops and the single mountain El Toro, there are no crows on Menorca and the commonest birds during the summer months may well be the Nightingale, Sardinian Warbler and Cetti’s Warbler, which inhabit every clump of suitable habitat plus more besides. Menorca’s Cetti’s Warblers are not found exclusively in their normal reed and waterside habitat, but also in very dry areas which have the necessary impenetrable cover they require. 

Nightingale

Nightingale

Sardinian Warbler

Cetti's Warbler

My thanks to Javier for inviting me along to his CES session. I hope to catch up with him and his colleagues in 2015. 

In the meantime recent posts on Another Bird Blog feature Menorcan birds (click the tag "Menorca" or "Menorca birds") and there are still a number of photographs on my PC for a Menorca posting soon, so stay tuned.

Linking today to Theresa's Run A Round Ranch.