Tuesday 31 March 2020

Self Isolating, Species 2 - Great Spotted Woodpecker

Great Spotted Woodpecker (Dendrocopos major)
Immature Great Spotted Woodpecker
Facts & Figures:
Population in 1970: 35,000
Population in 2019: 130,000
Change in Population: + 95,000
Percentage change: +371.4%
Length: 23 cm
Oldest: 12 years 7 months
Eggs: 4-6
Broods: 1

This pied woodpecker is by far the commonest and most widespread woodpecker in the UK, and is roughly the same size as a Blackbird.  However, the bill is much larger and more powerful than a Blackbird’s.  It’s population has increased greatly in the past few decades because of more food left out for birds in gardens.  This would have surprised bird-watchers in Victorian times, as the bird was in a long-term decline in the late nineteenth-century.  
Male Great Spotted Woodpecker

At home our first Great Spotted Woodpecker was seen on 18 September 1978, but now they are regular garden visitors, especially in the spring and summer.  When I started getting interested in birds in the late 60s there were no woodpeckers of any species in Ireland, but in recent years Great Spotted Woodpecker have crossed the Irish Sea and are now breeding in Ireland for the first time. 
Male Great Spotted Woodpecker

Great Spotted Woodpeckers are predominantly black with two large white shoulder patches, and smaller squares of white on the wings.  When they fly they have an extremely strongly undulating flight, which is sometimes is referred to as a swooping, looping or a bounding flight.
Blurred, but gives an idea of the markings on the back

I thought only male woodpeckers made the well-known drumming sound, but when we are at Normanby Hall we could clearly see a female woodpecker drumming.  Male GSWs have a red patch on the nape of their neck, whilst a female’s back of the head is black all over.  Both genders have red under the tail.   The drumming is very brief, it actually lasts less than 5 seconds, and it fades away towards the end.  This is quite different from the much scarcer Lesser Spotted Woodpecker its drumming lasts longer than 5 seconds and is much higher in pitch, and it comes to an abrupt end.
Female Great Spotted Woodpecker
The drumming can occur sporadically on nice days in December and January, but it reaches its greatest intensity in March and April.  When not drumming, this bird makes a loud “pic, pic” call, which can be run together into a longer series of notes when the birds becomes agitated or excited.

In early June for about a week to 10 days the parents often bring their young into gardens and feed them from the feeders.  At first the young are often ungainly and clumsy as they try and negotiate the bird feeders.  The male tends to look after a couple of the young birds, and the female another two.  After 10 days the young birds will probably continue to visit the garden on their own.  The young birds are initially identified by their bright red crowns on their heads, but as the weeks pass the red recedes until it either disappears completely, or begins to appear on the back of their heads.  
Male Great Spotted Woodpecker [left] feeding a juvenile 
My experience is that after a few weeks the woodpeckers stop visiting the garden, although they may return in their winter months.

A drumming Woodpecker from last week in which I try and remember some of the facts of this species may be heard in a video, which I’ve now added to YouTubehttps://youtu.be/F0LKFHL81RY

Monday 30 March 2020

Self-Isolating, Species 1 - Chiffchaff

Chiffchaff (Phylloscopus collybita)
The above is an Iberian Chiffchaff at Potteric Carr

Facts & Figures:
Population in 1970: 300,000
Population in 2019: 1,750,000
Change in Population: + 1,450,000
Percentage change: +583.3%
Length: 11.5 cm
Oldest: 7 years 7 months
Eggs: 5-6
Broods: 2

During the current crisis I’m going to attempt to concentrate on one species per day.  Chiffchaffs are one of the earliest summer migrants, and I heard 3 different males during my self-isolating cemetery cycle ride the other morning, so I am starting this new feature with the Chiffchaff.  Chiffchaffs are small Warblers only around the size of Blue Tits, although they are much slimmer than members of the rather rotund tit family.  Chiffchaffs are one of the three members of the Leaf Warblers, which breed in the UK.  The other leaf warblers are the Willow Warbler and the slightly larger and much scarcer Wood Warbler.  

Chiffchaffs are arriving at the moment, and have been doing so since about mid-March.
A brighter than normal Chiffchaff (26 March 2010)

Chiffchaffs are olive-green above, and much paler below.  Often they appear to be colourless below, but sometimes they can be fairly yellow, as was this adult bird I managed to photograph near South Cave several years ago.  Chiffchaffs and Willow Warblers both have a pale supercilium (the eyebrow above the eye).  However, when in very close proximity it is possible to notice a difference in leg colour.  Chiffchaffs usually have black legs, but not always (Willow Warblers usually have pink legs).   
A Chiffchaff showing its black legs

The Chiffchaff is also much more likely to to continually dip its tail, especially in a figure-of-eight motion.  Willow Warblers tend to dip their tail less often, and without a figure-of-eight motion.  A less easily discernible difference is their wing-length.  If the tip of the primary feathers in the wing are compared, the Chiffchaff’s doesn’t extend very far down the tail.  The Chiffchaff doesn’t need such long wings as it only migrates to the Southern Mediterranean or to Northern Africa, but the Willow Warbler is a long distance migrant as it migrates much further south way beyond the Sahara to Western Africa.
A typically dull Chiffchaff

By far the easiest way to differentiate these species is by comparing their songs.  Probably only the male Cuckoo has a simpler song.  The Chiffchaff has a simple two note song, which has been interpreted as “chiff-chaff” in the UK.  In other parts of Europe this has been rendered as ZilpZalp (Germany), tjiftjaf (Netherlands) and siff-saff in Wales.  

A video describing some of the attributes of the Chiffchaff has recently been added to YouTube: https://youtu.be/BqUQV69ylj4

Tuesday 24 March 2020

Before the Lockdown

On Friday we had an easterly wind at Bempton.  This had an effect on the birds as they struggled in the updraft from the sea.  At times they were suspended in the air right next to us as the top of the cliffs.  Sometimes the Gannets were just too close!
All photos (c) 2020 Jane Robinson 
Puffin
 ditto
 ditto
 Puffins and Razorbill
 Puffin with sunlight catching its eye
 Puffin - note back all black

 Puffin and back end of flying Razorbill - note white either side of the length of Razorbill's body 
 Puffin - bill open
 Gannet - with nesting material
 Gannet - hanging in the air
 ditto
 Love token?
 Tail spread
 Hanging in the air 
 Here's Looking at You Kid
 Superior Look
 Ruffled by the wind
 ditto
 Wings spread


 More hanging in the air shots
 ditto
 ditto
 Hanging in the air
 Razorbill Pair
 Razorbill
 Flapping
 Flying
 Two's Company 
 Three's a Crowd
 Rock Dove/Feral Pigeon

Monday 23 March 2020

Birding from a Vehicle

At the time of writing it (Monday, 6pm GMT) it is still possible to watch wildlife from a car, and because of the stress of the final week of classes under straightened circumdtsnces, I needed to get out.  I set off at 9.30am and drove all the way beyond Pickering.  I arrived at a bleak and drab moorland which was still smouldering in places.  I presume these were managed areas of burning to encourage the new growth of heather for the game birds.  It still seemed as though this shouldn't have been happening this late in the year, as there were Meadow Pipits and Stonechats back on territory.   
Male Red Grouse
I parked the car by a small pull-in shortly after arriving on the moorland, and was surprised to see a male Red Grouse very close to the car.  I don't remember ever having a really good view of one of these before.  He was resplendent in his gleaming red wattles.  Then he launched himself into the air making his rather excited call, before lapsing into his final cries which sound like "go back..go back...go back." 
ditto
 An Out-of-focus Red Grouse in flight
 I love the feathered-white legs 
 The white markings around the rear break up the monotony of the red-brown plumage
 Standing to attention
I drove round the area and saw many more Red Grouse, a pair of Lapwings and a Curlew.  A few cyclists were tackling the steep inclines, and a few vehicles passed at times, but this must have been one of the best places to watch birds in almost complete isolation.  At no time did I come anywhere near any third party.  I didn't have to leave the car and was hermetically sealed off from the outside world, so this illustrated it is possible to enjoy the countryside, recharge the batteries whilst safely self-isolating.  I hope anyone who wants to continue to enjoy the natural wonders is able to do so for as long as possible.  I wasn't able to photograph any other species, as nothing was as close as the Red Grouse, and I was determined not to leave the car.
Looking good amongst its habitat
A previous post about using a car as a hide is available herehttps://eybirdwatching.blogspot.com/2012/04/using-car-as-hide-in-spring.html