Showing posts with label Lancashire birds. Show all posts
Showing posts with label Lancashire birds. Show all posts

Sunday, July 18, 2021

Billy No Mates

Saturday morning, 17 July. My usual ringing pal Andy is laid up for some weeks following his knee op this week. Regrettably that means he will lose his part time job as a Car Park Attendant as he won’t have the essential qualifications of a lop-sided limp - (his joke, not mine). There’s no way Sue will accompany me at 0600 and support the far end of a 60ft mist net while I tie the near end. She’s not keen to provide secretary duties either. Arrangements like that would probably cost me dearly in the way of a contribution to the Gordon’s Gin Empire. 

Fortunately Billy No Mates knows of a quiet place where he can sit in a shaded chair with a couple of mist nets up and also bird with eyes and ears, even though in mid-July there’s not a lot to see or hear. 

This venue is private with no one to trouble me except for the pesky sand flies that even through a shirt dig their needle teeth in as soon as they land. This is not a place to catch piles of birds but rather a place to watch the world go by and wonder how I have managed to stay sane for 18 months while the world around has gone completely insane. 

The seed crop isn’t quite ready to split and drop but already the mass of flowers hold a myriad of insects and creepy crawlies. It’s no wonder then that a single net through the crop catches insect eating Sedge Warblers and Reed Warblers that visit here from a reed bed fifty yards away. 

Seed Plot

Seed Plot

So here’s a quiz for clued up non-ringers or even ringers who see few “acros”, acrocephalus warblers. The two pictures below show two ages of Sedge Warbler, an adult (male as it happens) and below that a juvenile born in recent weeks. Which is which? The differing stages of their respective plumage provide the answer. 

Sedge Warbler - juvenile/first summer
 
Sedge Warbler - adult
 
Differentiating the ages of Reed Warblers is less easy. At this time of year one of the best and quickest methods is to examine the wear on the primary flight feathers, especially at the tips. Birds of the year look fresh, new and unworn, whereas the equivalent feathers of an adult will be slightly worn and bleached at the outermost points. 

See the two pictures below. 

Reed Warbler - juvenile/first summer 
 
Reed Warbler - adult
 
Reed Warbler
 
A stroll along the paths led to a locked gate and the farmer's sign “Bull in Field”, an essential to deter trespassers of many kinds.  As I looked over, the young bull stared back. He appeared d harmless enough with blunt, stubby horns and a kindly face, nothing like those steamy nostril Spanish bulls that trample bullfighters into the Iberian dust. 

Beware of the Bull
 
As docile as the hulk appeared it’s best to never approach a bull, young or old, especially if there are heifers around. I also know to steer clear of the occasional Galloway cow found in local cattle herds; given the chance they can get fairly obnoxious and chase unwary birders across a field. 

Half a dozen Reed Warblers, two Sedge Warblers and a Wren the sum total of my ringing efforts. Adult Reed Warbler AKH0265 was from elsewhere, further details will follow. A Common Whitethroat sat atop a nearby hawthorn bush, the berries green with youthful innocence and the “throat” an older male with a greying mop, a wise old bird that I didn’t catch. 

Whitethroat
 
Likewise an unexpected count of 35 House Sparrows and 40+ Swallows were my highest counts of both species this year. Sad to say not a single Swift crossed my path - a poor year for this species. 

And sad to say, no other warblers where I might expect a couple of Willow Warblers and /or Blackcaps. 2021 - What a strange year in many ways when this cold spring followed the abysmal weather, poor breeding and low productivity of 2020.  There are no finches in the seed plot yet because natural seeds of the countryside are abundant for now, but the variety of the seed plot will work its magic soon. 

All season I watched the secretive Tufted Ducks that gave nothing away as to where the nest might be. And then today the family, minus dad of course, toddled along the track and then dived off and into the pool as mom saw me ahead. 

Tufted Ducks
 
On the waterway also - 3 Little Egret, 2 Little Grebe, 1 Grey Heron.  An entertaining morning for sure, even if there was no one to talk to except the birds or myself. 

 

Friday, July 9, 2021

Yellow Or Grey

Here’s a new header, the one that caused all the Blogger problems.  This new header will provoke comments and questions to rival why Blogger once again changed things that work to something that doesn't make sense.

How do I know there will be comments? The answer is that a post on Another Bird Blog entitled “Grey Or Yellow” of August 21 2016 has to date gathered an amazing 10,095 views, easily the most viewed post.

The search terms “grey wagtail” or “yellow wagtail” crop up on a very regular basis whereby Google directs the user to a number of sites, web places that include Another Bird Blog.      

So for today, and while I try to resolve the header problem, I hope to answer again the question “When is a grey wagtail not a Grey Wagtail but a Yellow Wagtail”?

It’s a subject that cropped up at Another Bird Blog when a reader suggested via a comment that my image of a Yellow Wagtail was in fact a Grey Wagtail.  The photograph is the one below. 

Yellow Wagtail

The species under discussion are two closely related ones, Yellow Wagtail Motacilla flava and Grey Wagtail Motacilla cinerea

The images below are pages from the The Crossley Guide that show not only the plumage differences between the two wagtails but also the different habitats and situations in which each is usually found. I’m sure that at most times of the year almost everyone can identify the adults of both species as they are really quite different in appearance.

Grey Wagtail - Richard Crossley (The Crossley ID Guide Britain and Ireland) [CC BY-SA 3.0 a/3.0)] via Wikimedia Commons 

 Yellow Wagtail Yellow Wagtail - Richard Crossley (The Crossley ID Guide Britain and Ireland) [CC BY-SA 3.0 via Wikimedia Commons

The Yellow Wagtail, male or female, is an overall shade of yellow, whereas the Grey Wagtail while having parts of striking yellow plumage in both male and female, is an overall grey colour above.  No problem there then. 

 Yellow Wagtail

Grey Wagtail

Less practiced bird watchers may experience confusion and misperception when dealing with autumnal “grey” Yellow Wagtails such as the one in my picture at the top of this post, a very pale and quite fresh Yellow Wagtail in its first autumn plumage during September. At this time of year juvenile Yellow Wagtails are greyish/brown/olive above and buff whitish below, with a partly yellow belly and yellow under tail. Rather than the bright yellow and immaculate males of some field guides, autumn encounters of both species usually involve less bright and slightly worn plumaged adults of either sex, or duller juveniles. 

My pictures below show the typical dark, almost black legs of a Yellow Wagtail and not the flesh coloured legs of a Grey Wagtail. The Yellow Wagtail has clearly defined wing bars as formed by the pale covert feathers. By comparison a Grey Wagtail of any age always displays slate grey wing feathers together with narrowly edged greyish coverts rather than the much whiter ones in the wing of a Yellow Wagtail.

Grey Wagtail

Yellow Wagtail
 
Grey Wagtail

Yellow Wagtail

Grey Wagtail

Yellow Wagtail

Yellow Wagtail

A feature that is less obvious unless the two species are side by side is that the Grey Wagtail has a very long white edged tail whereas a Yellow Wagtail has a shorter tail. This is a useful separation tool in the field when the long tail of a Grey Wagtail “bobs” and “pumps” almost incessantly as opposed to the less mobile and much shorter tail of the Yellow Wagtail. A Yellow Wagtail has a demeanour rather like a pipit, often standing taller than the similarly sized Grey Wagtail that can appear quite "crouching". 

Another separation in the field is the differing calls of the two species. The Yellow Wagtail has a sweet “tsee” or “schlee” or a louder “suree”. The call of Grey Wagtail is totally different with an explosive, metallic “zi-zi” or “tsvit”

Below is a great video from the BTO which not only sets out the difference between Yellow and Grey Wagtails, but for good measure also includes the Pied Wagtail Motacilla alba, yet another “grey” wagtail.


I hope this post has been helpful to anyone unsure about separating Yellow Wagtails and Grey Wagtails, or even grey wagtails.

And for anyone looking for a top quality field guide to the birds of Great Britain and Ireland I recommend the following three books:
That's all for now. Back soon with Another Bird Blog.  I hope to fix the half a header problem soon, perhaps via Blogger or through a helpful and HTML knowledgeable reader.

Linking today to Eileen's Blogspot and Anni in Texas.


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