Early winter bird survey - North West Zone December 2019

Just as we pull up in the car to the start of the transect, Tom Forward laments his wish to see a Black Redstart in the UK, after not having seen one for so many years.

Before I even switch off the engine, we spot a small bird bobbing up and down on a concrete wall.
Can I get a whoop whoop Tom...

Juvenile male Black Redstart

A blooming Black Redstart (Phoenicurus ochruros) is our first species of the day!! This really is an exciting find; a red-listed species which was previously recorded as breeding at Gatwick (during my first year here in 2012), however we've had no reports of them for a number of years now.  They are a very scarce bird in the UK, with only around 40 breeding pairs and 400 birds overwintering. 

Tom F. must have been thinking the habitat looked just right for this species, on the urban edge of the airfield. This one seems to be a juvenile male in its first winter plumage; it flies up to perch at the top of the new Boeing hangar. At the end of the survey when we returned to the car, we were even treated to its bizarre scratchy song...

Got to love a good record shot

Our transect begins at the new Boeing Hangar, following the length of the River Mole through the North West Zone. At the old concrete batching works, as well as Black Redstart we pick up another red-listed species; Grey Wagtail (Motacilla cinerea) along with Dunnock (Prunella modularis), which is amber-listed. Like Robins at this time of year and our Black Redstart, the Dunnocks are busily singing away.

It turns out to be a hectic start to the transect, with a Kestrel (Falco tinnunculus), amber-listed, hovering over the scrub and a pair of Stonechat Saxicola rubicola perched up on Teasel seed heads.

Stonechat Saxicola rubicola RSPB

A lone Robin ticks away, but the Wrens Troglodytes troglodytes are sounding off literally everywhere today. 

Wren Troglodytes troglodytes RSPB

The grasslands are good and frosty this morning, with plenty of standing water, so fingers crossed that our wellies are up to the task (normally one or both of us are a bit leaky). A pair of Reed Buntings (Emberiza schoeniclus), amber-listed, can be heard calling from down at the river side.

After picking up a few species along the southern edge of Brockley Wood, we push through the scrub and move down toward the river reed beds. Pausing here just for a moment produces the faithful sound of Water Rail Rallus aquaticus squealing deep within the reeds.

The habitat mosaics here are pretty special. The area has been undergoing natural processes since this section of the River Mole was realigned and designed as a floodplain meadow in 1999. The western edge of Brockley Wood now graduates into mixed scrub habitat and long grass, which in turn blends into shorter grass and the floodplain meadow.

Intersecting habitats result in a high availability of ecological niches, which in turn results in a lot of different species. The only thing missing from these ecosystems are the larger herbivores and other animals which would have managed them, which means that we have to do a degree of the grass and scrub management ourselves.

However, some of the local mammals still leave their mark...

On a small scale, Badgers (Meles meles) can behave rather like Wild Boar. In the picture above, they have been rootling through the turf and soil searching for hidden food (bulbs, invertebrates, mammals nests etc), resulting in local patchy disturbance. This process mixes up the seed bank, allowing for more wildflower diversity and creating important bare ground habitat.

Over to the north of Brockley Wood (likely named for the Badgers), as we poke our heads in a few Wood Pigeon (Columba palumbus) clatter off through the canopy, but otherwise all seems quiet. A lone Nuthatch (Sitta europaea) calls in the distance.

Back down to the floodplain and the mist is still clinging to the banks and reed beds.

Rounding the corner of a reed bed, we are greeted by a flurry of beige-coloured feathers and a pinging sound....

NO WAY. IS that a Bearded Tit?!!!

No record shots today...

I grab hold of Tom F's arm and I'm making tiny Water Rail noises myself... we can't actually believe it, this is such an unexpected find. This is certainly a first for our sites, and after consulting Twitter hive-mind, it might be a first ever record for the Mole Valley district!

Bearded Tit, aka Bearded Reedling Panurus biarmicus RSPB

This is my first ever clear sighting of this species, and even Tom F. hasn't seen one in years. It seems to be a lone male which is likely just stopping off for winter, or may have been pushed out of another more suitable habitat, but what an incredible record and such an affirming tick for the River Mole reed beds. I actually got a bit choked up!

This section of the river is maturing nicely since its realignment, so perhaps we are now starting to see just the right ratios of scrub and reed habitat intermixed with floodplain grassland. It will be exciting to see what else turns up in the next few years.

Pressing on along the floodplain, we are treated to another rare sight; a Water Rail! This is unusual for us as we normally only ever hear them. It flutters across our path, its long legs tucked in but feet protruding out in front as it disappears into the reeds.

Water Rail (Rallus aquaticus) RSPB

As we reach the end of the transect, we are treated to close up views of a Buzzard (Buteo buteo) carrying food in its talons, with two Jackdaws (Corvus monedula) winging their way in lazy pursuit.

39 species is a blooming good number for our winter bird survey sessions. 

This was certainly a memorable one for both myself and Tom F!

	Species	Scientific name
1	Bearded Tit	Panurus biarmicus
2	Black Redstart	Phoenicurus ochruros
3	Blackbird	Turdus merula
4	Blue Tit	Cyanistes caeruleus
5	Bullfinch	Pyrrhula pyrrhula
6	Buzzard	Buteo buteo
7	Carrion Crow	Corvus corone
8	Coot	Fulica atra
9	Dunnock	Prunella modularis
10	Fieldfare	Turdus pilaris
11	Goldcrest	Regulus regulus
12	Goldfinch	Carduelis carduelis
13	Great Spotted Woodpecker	Dendrocopos major
14	Great Tit	Parus major
15	Green Woodpecker	Picus viridis
16	Grey Wagtail	Motacilla cinerea
17	Jackdaw	Coloeus monedula
18	Jay	Garrulus glandarius
19	Kestrel	Falco tinnunculus
20	Long-tailed Tit	Aegithalos caudatus
21	Magpie	Pica pica
22	Mallard	Anas platyrhynchos
23	Meadow Pipit	Anthus pratensis
24	Moorhen	Gallinula chloropus
25	Nuthatch	Sitta europaea
26	Pheasant	Phasianus colchicus
27	Pied Wagtail (yarrellii)	Motacilla alba yarrellii
28	Redwing	Turdus iliacus
29	Reed Bunting	Emberiza schoeniclus
30	Ring-necked Parakeet	Psittacula krameri
31	Robin	Erithacus rubecula
32	Song Thrush	Turdus philomelos
33	Starling	Sturnus vulgaris
34	Stock Dove	Columba oenas
35	Stonechat	Saxicola rubicola
36	Treecreeper	Certhia familiaris
37	Water Rail	Rallus aquaticus
38	Woodpigeon	Columba palumbus
39	Wren	Troglodytes troglodytes

Early winter bird surveys 2016 (Part 1)

Land East of the Railway Line: December 8th

Dawn breaks over the Gatwick Stream, and Tom Forward is about to have a date with destiny...

Actually, the date is with a Snipe, but this is not just any old Common Snipe (although we did see 7 of those); it's a little bit scarcer than that. He wanders along the wet flushes, keeping out a sharp eye...

A sudden burst of wings from the ground and it's off like a shot - a Jack Snipe! Another new record for our bird list at Gatwick.

Jack Snipe (Lymnocryptes minimus) RSPB

Common Snipe (Gallinago gallinago) RSPB

Much quieter than Common Snipe, the Jacks have a shorter bill and are a shorter, dumpier bird in general. The Common types will shoot off up into the air before you can get close, but Jacks can hold on until you almost step on them, then dropping onto the ground again after a short, low flight.
  A small flock of Meadow Pipits bounced past us through the air, and a Grey Wagtail descended rapidly down into the river channel.

 

Our next new discovery for this site is a Barn Owl roost in our 'Little Owl-Oak'. Not sure if the little-er owls would think much of their new neighbour....

White wash (owl wee) on the tree above what might be the Little Owl nesting hole

Barn Owl pellet

Poking our heads over the bank of the Gatwick Stream by the sluice gates, and were surprised to see a dark, sleek mammal gamboling in the water. American Mink are insatiably curious and this one actually came towards us, then hid in a small clump of rushes to check us out.

Not much of a photo of course.
How to tell apart Otter and Mink - a handy Wildlife Trust fact sheet.

Dashing back over grasslands to the next transect, and we were stopped in our tracks by a pair of Kingfishers zooming low over the grass. Although strongly associated with water courses, they are known to sometimes cut corners and even head into woodland habitat to do so. Hey, I would too!

Into the woods and a flock of Redwing were busy foraging in the understory. Winter thrushes vary what height they forage at depending on available food source. Towards the end of winter they feed more on the ground.

More white-wash beneath a mature oak - favored perching point for a Common Buzzard?

A Song Thrush sang from a distant hedgerow. A Wren and Robin were also in song; only a few birds do this through winter.
   At Dunnock corner, there were constant loud calls which signified the usual debauchery. They always seem to get louder in winter, kind of like my own family. I guess domestic drama helps to keep small birds warm. I still get Dunnock and Kingfisher calls mixed up, which after 4 years of these surveys Tom F. must be getting fed up with.

Through the woodland strip and out into Lower Picketts Wood, mixed flocks were abound of Long-tailed Tits, Blue Tits and Goldcrests. We checked a little closer through the binoculars but sadly couldn't turn any of them into a Firecrest. At the end of the transect, our trusty Treecreeper finally called.

The final species count for the morning was 33 (not 34, as I only recorded Common Buzzard when I returned to site at the end of the day):

1	Blackbird	Turdus merula
2	Black-headed Gull	Chroicocephalus ridibundus
3	Blue Tit	Cyanistes caeruleus
4	Bullfinch	Pyrrhula pyrrhula
5	Buzzard	Buteo buteo
6	Canada Goose	Branta canadensis
7	Carrion Crow	Corvus corone
8	Coal Tit	Periparus ater
9	Dunnock	Prunella modularis
10	Goldcrest	Regulus regulus
11	Goldfinch	Carduelis carduelis
12	Great Spotted Woodpecker	Dendrocopos major
13	Great Tit	Parus major
14	Grey Heron	Ardea cinerea
15	Grey Wagtail	Motacilla cinerea
16	Jack Snipe	Lymnocryptes minimus
17	Jackdaw	Corvus monedula
18	Jay	Garrulus glandarius
19	Kingfisher	Alcedo atthis
20	Linnet	Linaria cannabina
21	Long-tailed Tit	Aegithalos caudatus
35	Magpie	Pica pica
22	Mallard	Anas platyrhynchos
23	Meadow Pipit	Anthus pratensis
24	Mistle Thrush	Turdus viscivorus
25	Pied Wagtail	Motacilla alba subsp. yarrellii
26	Redwing	Turdus iliacus
27	Robin	Erithacus rubecula
28	Siskin	Spinus spinus
29	Snipe	Gallinago gallinago
30	Song Thrush	Turdus philomelos
31	Starling	Sturnus vulgaris
32	Treecreeper	Certhia familiaris
33	Woodpigeon	Columba palumbus
34	Wren	Troglodytes troglodytes
	American Mink	Neovison vison
	Eastern Grey Squirrel	Sciurus carolinensis

Barn Owl (roost)

Tyto alba