Tag Archives: Bird migration

Now you see me, now you don’t

One of the great things about birding the same patch is you get to build up a sense (or even a monitored trend for those of us who keep spreadsheets) for which birds you see over time. Migration is, of course, a major factor in birds appearing and then disappearing. Our Swift flocks have now gone. They were present on every visit to the Patch from 22 April until the end of July. I missed last weekend as was away so can’t pinpoint their departure. But it never ceases to amaze me how fleeting their breeding stopovers seem to be. One day the the sky seems full of scything screamers and then, like Keyser Söze, they are gone.

Willow Warbler is a species which seems to have a tentative perch-hold on the Patch. I got four records of Willow Warbler in the Spring. The first was probably just a passage pass-through, and then three weekends in a row in April/May when I had one or two birds singing. Almost certainly an attempt at making a viable territory, but not, perhaps, successful. Now we get a second bite at the cherry with the returning birds and I got a bright bird yesterday in Wanstead Park.

IMG_4809v2

Willow Warbler (Phylloscopus trochilus)

But with other birds, their presence or otherwise seems more arbitrary or subject to annual cycles not connected to migration. It has been a good year for Little Owl on Wanstead Flats. We think two pairs have bred successfully. I looked in their ‘usual places’ yesterday but couldn’t find them, only to hear one calling loudly from a different copse as a dog walker went past it. It stayed put long enough for me to take its picture.

IMG_4862v2

Little Owl (Athene noctua)

Nuthatch, and even Treecreeper, have also been spotted more frequently this year than in others. But other birds seem not to be doing as well. I’ve seen very few Grey Wagtail this year, for example. Whilst Little Grebe seem to be doing better than I remember before, and have bred on Alexandra Lake, Great Crested Grebe have seemed almost entirely absent; I saw my first for this Spring and Summer on the Shoulder-of-Mutton pond in Wanstead Park on Saturday.

IMG_2859v2

Alexandra Lake, Wanstead Flats

2016 and 2017 were good years for Wigeon on the Patch. We saw up to a patch-record-breaking 61 birds in 2016. But there were very few sightings of this duck early this year with it not even being on my patch year list. So I certainly didn’t expect to see one today on 12 August! But Nick found one, on the River Roding, and I photographed her as she is the earliest returning Wigeon we have a record of on the Patch.

IMG_5096v2

Wigeon (Anas penelope)

Other birds are scarce visitors but you come to expect them at certain points in the year. So it is with Yellow-legged Gull. Today three of us were treated with lovely views of a 4th calendar year bird that Nick actually found yesterday by Alexandra Lake. This was a patch year tick for all of us involved.

IMG_5031v2

4cy Yellow-legged Gull (Larus michahellis)

Meanwhile, other birds never seem far away. It is a rare day on the Patch not to hear the yaffle of a Green Woodpecker, or to see one sail over your head at some point. However, despite them being common, I don’t often get to watch them close-up, so yesterday I was pleased to get close views of two males; an adult and a juvenile by Perch Pond in Wanstead Park. In my slightly sentimental state as an expectant dad, I like to imagine that this was father and son bonding on the Patch. Something I hope to be able to do in due course.

IMG_4831v2

Adult male (Picus viridis) aka ‘Daddy’

IMG_4820v2

Juvenile male aka “junior”

Paean to Phoenicurus and the other patch-breeding birds

Being away from the Patch when the Autumn passage migration begins is never easy. It is made easier by having the privilege of a second patch in a different country in which to holiday.

Common Redstart has been seen again in the East London patch; a bird I hope to catch up with when I return. But I can’t complain. On the French patch, Common Redstart are also migrants, but they stick around and breed over the summer rather than just pass through as with London.

IMG_2305v2

Immature male Common Redstart (Phoenicurus phoenicurus)

I love redstarts: they are stunning birds with bags of character and are relatively bold affording us with great views. Sadly, the only bird not showing fantastically well was the mature breeding male – the best shot I managed was this:

IMG_2318v2

fullsizeoutput_9a

Female, left, and young male, right

They will soon head back to Africa. However, their similarly red-tailed relatives, the Black Redstart – that have also bred successfully – will stick around as they are full year residents. The family that breed year after year by the house beat their ‘common’ cousins as being the most showy of the patch birds.

IMG_1953v2

Juvenile Black Redstart (Phoenicurus ochruros)

It has been great to watch young birds be fed, learn to feed themselves, and grow. Other birds visibly doing the same thing on the French Patch have been Stonechat – with immature birds perching up every now and again, and several of the resident and migrant-breeding warblers. The most successful sylvians here have always been the Subalpine Warblers and I have spent hours this trip watching families of this warbler making the most of the early autumn berry bonanza to supplement their invertebrate diet.

IMG_1967v2

Male Subalpine warbler (Sylvia cantillans)

IMG_1856v2

Male with juvenile

IMG_1896v2

Male feeding juvenile

There are, of course, several other breeding birds on the French Patch that have not proved as easy to observe. August can be a tricky month in that respect as birds are so quiet – there has been very little song. In fact, it can lead one to – sometimes incorrectly – conclude that birds have already migrated. I have only had brief views of Chiffchaff, Willow Warbler, and Melodious Warbler with barely even a call out of any of them.

IMG_1406v2

Melodious Warbler (Hippolais polyglotta)

In may and early June the land is alive with the song of prospecting and protective males of multiple species. Most beautiful, of course, is the Nightingale. I haven’t seen a single one of these notoriously shy songsters and had concluded they had left for the South when I was treated to a few grating calls and even a short burst of sub-song from deep within the scrub.

There are also some more exotic migrants which I will return to in a different post.

 

The Inbetweeners: a short story of seasonal change

There is a transition. A point in-between seasons that is neither one nor the other. A chronological no-man’s land, so to speak. A seasonal limbo of…

…This is nonsense of course. Seasonality is a human construction to assist us in making sense of the passage of natural time; applying order to the highly relative flow of change.

Nevertheless, a riddle could be written: ‘when are there many swifts, but at the same time… none?’. The answer, of course, sits in the middle of our ‘summer’ holidays, but many, many weeks after the solstice. The locally breeding swifts have departed, or mostly, and the gathering flocks of swifts in the sky are passage birds.

Other birds are moving too. A south-bound Wheatear has been seen, and a number of bright Willow Warbler have been found on the patch. Far more than the one or two pairs that we believe have bred locally.

I was looking out for these, and hoping to see other passage migrants – perhaps an early returning flycatcher – when I heard a strange two-tone disyllabic call from within the lime trees in our SSSI area of the Wanstead Flats. I heard it again and again, from within the trees. I even videoed the sound (click here).

And then the tiny bird emerged from the foliage. In the morning light I thought it was a young Willow Warbler with a very odd call and missing some tail feathers, but studying the calls, it appears to be one of the young Chiffchaff from the patch.

IMG_1275v2

Common Chiffchaff (Phylloscopus collybita)

As some birds leave, and others pass through, other creatures hold on to the last strips of summer. Peak butterfly time has been and gone. But luckily not all of them have disappeared yet. I saw my first Brown Argus on the patch on Saturday (my 25th species of butterfly here) and photographed one again today…

IMG_3257v2

Brown Argus (Aricia agestis)

The diagnostic black spots on the forewing are clearly showing in this photo, which help distinguish the argus from the similar looking female Common Blue. Of course, no such difficulty exists with males – also still on the wing.

IMG_7688v2

Common Blue (Polyommatus icarus)

Seasons change. Or so we imprint on the natural flow. If you need further evidence that Autumn is coming, you should have seen some of the giant fungi that have sprouted up recently, including these:

IMG_4383v2

Unknown fungi