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The Dene through the Seasons


December 2017

Brown Rats seen at bird feeding stations

Grey Squirrel seen in first week but not since

Roe Deer seen in small numbers all month

Cormorants seen as far upstream as Holywell Bridge

Little Egret seen occasionally all month

Stock Dove sightings highest ever

Pink-footed Geese flocks seen feeding in adjacent fields


The very cold second half of the month is probably the reason for two unusual reports both saying that a Brown Rat was seen hoovering up the debris under two of the bird feeder stations in the Dene.

During the first week of December six Grey Squirrels were reported, all in the west of the Dene between Crow Hall Farm and Holywell Road Bridge (HRB) with no less than three being seen on 8th. No doubt some of these reports would have been of the same animal but we know for certain that there were at least three about. Since that date there have been no further reports this month. During that early period of sightings relevant feeding boxes were given extra checks and the food in all the boxes was changed to keep them inviting to squirrels but not one throughout the whole Dene was visited by feeding squirrels.

Roe Deer have been seen in small numbers throughout the month starting with two being seen close to Hartley West Farm (HWF) on the 2nd, then on 11th and again on the 12th three were seen in the field opposite the oxbow lake and then one was seen on 14th again near HWF. Final sightings were on 22nd with two being seen and on 31st four were seen, both sightings on the field between HWF and the estuary, a favourite place for seeing deer.


As usual in December Grey Heron have been seen in all areas along the river sometimes feeding and other times just standing. Quite a shy bird it is up and away as soon as a human or dog comes near but often is then seen again a little further up or down river. Cormorant are less shy and usually just get on with their fishing regardless of people nearby. They have been well reported all month with one seen way upstream under HRB and, on two occasions, another sitting on what is known as the dipper rock at the east end of the tunnel. Other sightings have been further downstream including the estuary.

Dipper sightings have been very disappointing with just one report of two birds under HRB on the 10th.  Little better have been reports of Grey Wagtail with just a pair seen in the estuary and a single bird seen near Old Hartley pond on the 11th. Moorhen have been seen in two areas, firstly near the pipe pond where three were seen on one occasion and singles on four other occasions and secondly in the field on the north side of the river opposite Old Hartley Pond where single birds have been seen on five occasions.

After last month’s rush of large groups of Mallard, December has been much quieter with only two reports, with a pair in the estuary on 17th and seven birds a short way upstream from the metal bridge on the 17th. The Little Egret has been seen on six occasions usually in the estuary but on two occasions flying above the Dene either to or from the estuary.

On the 11th there was an unusual report of three Snipe in the estuary while Redshank sightings have been well down with only three reports with six on the 11th, eleven on the 15th and twelve on the 16th.

In the woodland there have been four reports of Great Spotted Woodpecker with the one on the 16th actually drumming at first light – the first drumming of the season. No reports of flying Buzzard have been received this month but one was seen resting in a tree in the Dene on the 18th. A Jay was seen on 11th in its usual area close to the bridge over the old railway line (ORL) while a Kestrel was seen near Crow Hall Farm on the 5th and a Nuthatch was heard near the stone bridge on 11th.  The final single report came from the estuary where a Goldcrest was seen on 16th.

The common finch numbers have been well down this month. Chaffinch have been seen all month but numbers have been just one or two while there have been only four Bullfinch sightings of one to three birds. Goldfinch have been seen occasionally in the Dene and in the estuary area with numbers between one and two although five were seen in the Dene on 19th. There has not been a single report of a Greenfinch.

Where there are human influences Robins will be around and that goes for this month. At least one has been seen near all the feeding stations, often more than one but then the altercations start and it has not been unusual to see three or more chasing each other around the feeders. While all this was going on, the ground beneath the feeders was regularly visited by Dunnock, feeding on the fallen seed, never more than two, more usually a single bird. Tree Sparrows have made a good showing all month always in the more central parts of the Dene. Numbers started in the twos to threes but by the end of the month numbers had increased to around seven. The odd single Wren has been seen regularly throughout the Dene with a number of reports saying they were near the feeders but never actually feeding.

A Sparrowhawk was only reported twice this month on both occasions in the estuary with two there on the 24th. I would have expected to say roughly the same thing about Stock Dove sightings but they have been the surprise of the month, with no less than nine reports of groups of up to ten birds – unprecedented in these reports. Perhaps more people are beginning to distinguish them from Woodpigeon!

Blue and Great Tits have been well reported but indications suggest numbers have been a little down on normal. However, Coal Tits have been above normal and Long-tailed Tits, now they are in their winter flocks, have been well reported with numbers into double figures. One or two Willow Tits were regularly seen in the first half of the month but then there was a lull until 29th when one was seen.

Blackbird numbers seen, in the region of three to five, is about the norm for this time of the year with males outnumbering females by about four to one in all parts of the Dene. Finally in the woodland, Pheasant have been regularly heard but rarely seen, mostly in the centre parts of the Dene; but there has been no sighting of a bird in the adjacent open fields.

Those same fields have been the place to see large flocks of birds this month. On occasions flocks of six to seven hundred Rooks, Jackdaws, Magpie, Woodpigeon and Crows have taken off from these fields making blue skies look speckled black. Most of the rooks go back to their nesting trees in the Dene and it is as they arrive that the noise of their calling is at its worst. On other occasions the cloud has been smaller and whiter with flocks of around 200 assorted Gulls taking off and usually flying towards the sea.

Other small flocks of Curlew (6) and Lapwing (25) have been seen, while there has been three incursions of Pink-footed Geese with an estimated 800 circling above the fields but not landing on the 7th and two feeding sessions of around 300 birds on the 15th and 27th with their iconic sound heard on eventual take-off

January 2018

Only one Grey Squirrel reported

Roe Deer often seen up to five

Little Egret still around

Flocks of Pink-footed Geese have visited

Tawny Owls calling after dark

It has been a cold, windy and wet January and this has affected both mammals and birds although, compared with previous years, flooding has been almost non-existent. Overall it has been a quiet month for wildlife in the Dene with some worrying absentees.


There was only one reported sighting of a Grey Squirrel in January, feeding on the bird feeders near the upstream bridge on the 18th in mid-afternoon. What a difference to twelve months ago when the word crisis was being used and the cull of the greys commenced. The squirrel feeding boxes throughout the Dene have continued to be checked on a weekly basis through January but there have been no grey visitors.

Two other animals have been seen feeding on the crumbs dropped by birds from their feeders. A single report of a Red Fox hoovering under the upper bridge feeders was received in the second week while, on a much wider scale, a Brown Rat has been reported from under three of the bird feeding stations on a number of occasions: a sure sign of difficult natural feeding conditions due to poor weather.

Roe Deer have been seen all month and from all parts of the Dene. Sightings gradually increased towards the end of the month with five (1M & 4F) in the north field adjacent to Hartley West Farm (HWF) on the morning of 27th and then a further two were seen crossing the old railway line in the middle of the afternoon. Previously, a similar combination of five was seen on 13th early in the morning in a field to the west of HWF. In all fifteen sightings were reported during the month of various numbers.

Once again there have been no sightings of an Otter, either the animal or spraints in the Dene. In 2016/17 they were seen occasionally from late summer through to early spring; so far from late summer 2017 to this month not one sighting has been reported. What has changed?


As a general comment, this month has seen a gradual increase in the number of birds about in the Dene and the amount of bird song heard.

On the river a Grey Wagtail has been reported twice once in the estuary and on the 22nd near the downstream bridge, while a Cormorant has been seen three times, on the 9th flying upstream low above the river, on the 25th fishing at the tunnel and on 28th in the estuary. There have only been two reports of Mallard both of groups flying low upstream. Two were seen on the 4th and then seven were seen on 21st. On the negative side there have been no sightings of either a Kingfisher or Dipper, the latter being a great disappointment as they should have paired up by now and be defending their territory. Last year a Kingfisher was seen six times in January!

Redshank appear to have deserted the estuary this month with only a single bird seen on 15th. Moorhen on the other hand suddenly appeared in their favourite area, slightly upstream from the metal bridge, on the 17th and since then no less than nine reports have been received, ranging from three to nine birds. In reverse to this the Little Egret was seen regularly up to 19th but not since. Reports of this bird were mostly of it in the estuary but it was also seen flying up and down the river. On some days there were reports of a bird being seen early in the day, at noon and late in the day: there is no way of telling whether it is the same bird or not. On only one occasion did the report state ‘two birds together in the estuary’

Finally on the river, the Grey Heron was once again the most reported bird, either flying, feeding or as it loves to do, just standing. As the month has gone on, sightings have tended to come more from the estuary and a little upstream from the metal bridge, as the birds have started to congregate in the heronry area.

In the adjacent fields, other than the massive flocks of Gulls, Jackdaws, Rooks and Crows, and the large flocks of Woodpigeon (around 50 being common) things have been relatively quiet. There has been a worrying increase in the number of Magpie being seen with groupings into double figures common. Large flocks of Pink-footed Geese have only spent time feeding in the fields on two occasions with 300 on the 13th and around 350 on 18th. There has only been one report of a Pheasant seen on the ground but plenty of reports have come in of them calling from all parts of the Dene.

A walk through the woodland early in the month would reveal a couple of Blackbirds, usually male, happily feeding side by side. By the end of the month you were likely to see six plus Blackbirds of both sexes arguing, fighting and seeing each other off – that change typifies January.

On or near the 21st there must have been a migratory inflow of Redwing because, in a three day period around that date, reports were received of one and two birds being seen along the path from Hartley Lane car park down to the harbour and in the adjacent gardens. They then disappeared as quickly as they had arrived.

A Buzzard was seen in the Dene on the 6th and after dark Tawny Owls have been heard calling, which gives hope they will nest again this year in one of our boxes, as they did last year. The only report of a Sparrowhawk received was of a sighting on the very last day of the month.

Needless to say Robins have been well reported but on only one occasion, when four were seen together, have the reports indicated more than one or two birds. The reports of two birds have usually also indicated that they were fighting. It is very pleasing to report that Stock Dove once again have been well recorded with a flock of five seen a number of times over the period 20th to 22nd. The bird feeders have been the place to see Nuthatch, with birds reported from three of the feeding stations in the Dene itself, although one sighting was recorded from the Dale Top, Holywell area where there are no feeders. Seen hoovering under the feeders, Dunnock have been well recorded in their usual ones or twos.

Goldfinch have been almost non-existent with only one report of three birds seen on 14th but Starling, rarely reported before, have found the feeders towards the east end of the Dene and are now being seen more regularly - where there is food there are Starlings!! The number of Chaffinch seen continues to be very disappointing. Reports have come in throughout the month from numerous places in the Dene but it is usually of just one bird, a couple of times two. This once common bird appears to be going the way of the Greenfinch, which is hardly seen these days. Bullfinch have been well reported from throughout the Dene and regularly throughout month but a comparison with last year indicates actual numbers well down. Tree Sparrow, after a slow start to the month, has increased sightings from all parts of the Dene with small flocks of around six seen regularly in the last ten days. There have been very few sightings of a Great Spotted Woodpecker but many heard drumming in all parts of the Dene.

The bird that has probably created the most pleasure to watchers this month is the Long-tailed Tit. Never before have there been so many reports, with flocks of a dozen often seen, all trying to get on one feeder at the same time. A Willow Tit was seen on five occasions, with two seen together on 1st ;  however, reporting tailed off towards the end of the month. Coal Tit have been well reported between one and four but Blue and Great Tits, although seen daily, their numbers have been disappointing, especially the latter.

February 2018

Over 1000 Geese in one field

Bad weather attracts Fieldfare and Redwing

Plenty of Roe Deer seen

Stoats seen

The first sighting of a pair of Dippers this year

Nuthatch seen

Kingfishers seen

The cold, wet and generally windy weather in January has been continued in February, culminating in severe cold temperatures with gale force winds from the east, bringing in heavy snow towards the end of the month.

It will be surprising if this severe weather does not have some effect on wildlife in the Dene in early spring.


There have only been two sightings of a Grey Squirrel this month, once on 9th and again on 12th, both in the same area between Holywell Road Bridge (HRB) and the oxbow lake. There is a strong possibility that the sightings were of the same animal. Weekly feeding box checking has shown no visitors.

There have been twelve reports of Roe Deer being seen from as far apart as just downstream from HRB to the field above the pipe pond at the head of the estuary. The largest group seen was 6 (a male and 5 females) and the smallest a single male on the 25th, the last sighting. The usual group size has been between 3 and 5, with all being female.

Brown Rats have been reported a number of times from beneath the bird feeders, with reports increasing dramatically nearer the end of the month. The Rats only appear when no movement of humans or dogs can be detected. 2 Stoats have been seen, both thought to be male, once on the north side of the river opposite Hartley Pond and the second between the tunnel entrance and wooden bridge. Neither were white.


Starting in the adjoining fields, things have been quiet except for the massive flocks of Pink footed Geese, which took a liking to the grazing fields from the 7th onwards. On that date a flock, thought to number 1200 birds, spread itself across the whole field as they landed at 09.45 and there they stayed until late afternoon. The noise of their arrival could be heard some considerable distance away and, except for two or three circular flights above the fields during the day, they stayed feeding on the grass. After that initiation, flocks, albeit smaller of around 300 to 750 birds, were to be seen and heard on four other days. The flock seen on 20th had a lone Barnacle Goose in their midst and on 25th there were 2 White Fantailed Doves surrounded by 350 other much larger birds. Obviously the doves had escaped from somewhere but it is hoped they found their way home; as it is doubtful they would have survived the severe weather in the following days.

Male Pheasants were seen running across the fields on six occasions but others were often heard calling in all parts of the Dene but not seen. With all the geese about, the large flocks of Gulls, Crows, and Jackdaw were missing but Magpies appear to go from strength to strength with flocks of up to 15 having been seen and, in the same area, Woodpigeon flocks of 75 plus were common. Some 40 Rooks have continued to make a very loud noise from their rookery at the east end of the Dene.

Things have been quiet on the river, including the estuary. Grey Heron have been seen and heard all month,

with the majority of sightings coming from the area of their heronry: 6 birds were seen there on 5th. However, two of the sightings were well upstream, one in the Dale Top area and another near the tunnel entrance under the old railway line (ORL) Then on the 22nd 3 were seen resting in a straight line, equidistant apart, in a field already occupied by hundreds of geese. There was only one report of a Cormorant and that was early morning on 15th flying low going downstream towards the estuary.

Sightings of the Dipper have been very disappointing with only one report of a single bird at the tunnel entrance and two reports of a bird under HRB. Then on the very last day of the month 2 Dippers were seen at the tunnel entrance –perhaps nesting is still on. A Grey Wagtail has only been reported four times, once in the estuary and the other times in various parts of the central Dene. The Little Egret was only seen once on 23rd – no not in the estuary – but way upstream in the Dale Top path area. A kingfisher was seen on three occasions, once in the estuary and on the other two occasions upstream and downstream of the stone bridge. Moorhens continued to be seen up to 17th but not afterwards. On one occasion 2 were seen near the stone bridge with all the other sightings a little upstream of the metal bridge, with numbers up to 10 being seen.

There were four reports of Mallard with numbers of 1, 2 or 3. Two of the sightings were near the metal bridge with the others well upstream in the centre of the Dene. The only report of Redshank in the estuary this month was on 10th when 9 were seen. Finally along the river, reports towards the end of the month spoke of Wrens being seen flying from bank to bank low over the stream.

February is normally the month when bird activity and song increases as spring nears. This year all followed the normal pattern until the final week, when the easterly gales struck and the countryside was covered in snow and spring had been put on hold!

A Sparrowhawk was only reported once in the central Dene with a Kestrel seen on three occasions, twice hovering over the fields and once in the Dene. A Buzzard was seen in trees along the HBR path on one occasion and flying overhead twice. A Tawny Owl was heard calling on two occasions near Crowhall Farm.

A Great Spotted Woodpecker was seen and heard often from most parts of the Dene, including the estuary while a Jay was seen once in the central part of the Dene and heard twice near the ORL. February was a good month for Tree Sparrows with no less than twenty two sightings with numbers going from a single bird up to a flock of 15. The same can be said for the Stock Dove, except the flock size was lower between 1 and 4. The tiny Goldcrest was seen on four occasions, three times in the Dene and once in the estuary, but there was only a single sighting of a Treecreeper and that between the wooden bridges.

The first Nuthatch sighting reported was on 19th but was then seen a number of times after that date. However the 25th was the day remembered by two small family groups passing through the Dene looking at birds. At the upper bridge a kind Nuthatch appeared for them, then at the lower bridge 2 were on the feeders and on reaching the stepping-stone feeders there was a fourth. Just to make their day complete, as they reached the meadow a Kingfisher was sitting on a branch above the river.

Blue, Great and Coal Tits have all been well seen with Blue Tit flocks sometimes into double figures. Long-tailed Tits have had a quite exceptional month. The larger double-figured flocks tended to break up early in the month but after that small groups of 1 to 4 were reported on almost a daily basis. 1 or 2 Willow Tits were seen on six occasions spread throughout the month but all from the east end of the Dene.

As regards the finches, Bullfinch had another disappointing month with only six sightings, all of 1 bird except on one occasion when there was a pair. Chaffinch were regularly seen but of only 1 or 2 birds.

Of course a Robin appeared on most occasions, sometimes 2 but that usually ended in a fight, while Blackbirds have been everywhere, sometimes in double figure flocks and, needless to say, arguing with each other. Dunnock, usually seen cleaning up under the feeders, have been around all month, always of only 1 or 2 birds. The Dene feeders closest to human habitation have continued to attract Starlings, with up to 7 birds attacking the food as is their way.

The end of the month brought the extreme cold, gales and snow, resulting in Fieldfare, Redwing, Song Thrush and Read Buntings all appearing looking for food, not only in the Dene but also in peoples’ gardens. As well as these unusually seen birds, more common birds increased dramatically in numbers including Chaffinch and Dunnock, all the Tits and of course Blackbirds. Unusually, Robins almost forgot their aggression and fed together and on one occasion three Robins were seen picking up food within a 12” circle, which just shows how bad things must be for our birds.

This monthly Fauna Report is based on sightings submitted by people, expert and amateur, interested in birds and wildlife. The more reports we get the better and more interesting the Fauna Report will be. If you visit any part of the Dene or adjacent fields and you see birds or animals you recognise we would love to hear from you. Ideally, what you saw, how many, the rough location and date/time are the details we want.

You can let us know by:          Text to 07958640903 or email to www.friendsofholywelldene.org.uk

We really do look forward to hearing from you.