The weather has been a problem for all our activities this year. Insufficient notice of dry days in the fluctuating forecast has made all our arrangements a last-minute scramble to organise. Those that we have been bold enough to gamble on for them to remain as predicted dry days, have often had to be cancelled at the last minute prior to the event. Such was our demise with our bat box surveys again this year. Lots of locations to visit and a seasonal deadline to meet, but no obvious dry intervals to undertake them in. This dilemma required last minute working teams to be organised to capitalise on emerging dry intervals. Thanks to the willingness of our volunteers to respond to this situation, we managed to form sufficient teams to complete all of them before the permanent onset of cold, wet, weather. Despite the pessimism we felt beforehand about the weather impacting badly on a successful outcome in terms of bats found, we were pleasantly surprised.
Our seasonal bat surveys began late in our richest location at Talbot Field.
We always begin here to try to obtain sightings of the more uncommon species before the seasonal warmth recedes.
All boxes in this site contain evidence of bat occupancy having occurred at some stage during the summer months.
Once again this year, despite the miserable wet and cool weather, we were rewarded with a box containing three rare Bechstein’s bats.
Last year the early onset of cold conditions prevented their presence in our survey, so we were delighted with finding them again this year.
Whatever the weather, we are always pleased to find the delightful Common Pipistrelles who regularly appear each year. This box contained five.
Two appear in this box above a huge pile of bat droppings which indicate intensive seasonal bat use.
A team of willing volunteers are assembled before each site is visited. Without this valuable help the surveys would not be possible.
Almost all locations reveal box usage by bats of some species.
This box contained a cluster of Common Pipistrelles.
The strong gales experienced throughout the year leave a trail of woodland damage which often makes our progress difficult….
.…but with determination, the team members overcome all obstacles.
It does however, slow progress, which realistically makes only one site location feasible for any chosen day.
These were two further Bechstein’s bats found in another woodland. This was again a site they had used before but were absent from last year due to the cooler conditions.
This box rewarded our effort with three Common Pipistrelles found roosting inside.
We try to disturb them as little as possible to ensure they remain in the positions we find them rather than, as sometimes occurs, they begin crawling towards the doorways. When they do this, extra care has to be taken to gently move them back, so that there is no possibility of trapping them when the door is replaced.
Each tree box is logged and the occupants recorded.
Helpers select specialist roles for themselves….
….and repeat their task every time the ladder sections are moved to a new tree location.
This teamwork is essential to progress the huge annual task these checks create….
….to enable every bat found to be recorded.
The smaller Common Pipistrelles were the most prolific species found….
….but we also found the larger species of Noctule bat in our survey, as shown here.
Noctule bats are one of our largest native bat species with a wingspan up to 460mm. They are fairly common but always a distinctive species to find.
Some of the woodland locations were a ‘nightmare’ to negotiate, with thick bramble understoreys making travelling through them very difficult….
.…and negotiating ladder sections through them almost impossible on some occasions.
This extreme effort expended made every occupied box found a just reward….
….and each occupant a highly prized discovery….
….regardless of species.
This particular woodland, was so thickly populated with bramble understorey and fallen trees that some boxes were difficult to reach….
….taking several hours longer than normal to achieve successful completion.
The recordings of bats found indicated that all were healthy and flourishing well….
….giving us the reassurance that our effort was helping considerably with their conservation.
There were of course some things that depressed us, like this woodcrete bat box found showing evidence of attempted grey squirrel penetration, which made a replacement door necessary on our next visit to make it suitable for bats again.
Generally however, the overall activity was completed successfully….
….thanks to the hard work and dedication of our volunteers who, despite the reduction in available dry days….
….willingly gave up their time to create teams at short notice in order to complete the overall activity before the seasonal deadline. We are very grateful to each of them.
However difficult the weather made the progress of our bat surveys, at least we had some really encouraging finds within them. We rarely get the same satisfaction with the number of dormice found in our many dormouse boxes. This year however, at the end of the year we did find evidence of a dormouse nest within one of the boxes, but no additional evidence of dormouse habitation from food consumed or other indicators. It does give us encouragement to keep our conservation effort going and spurs us on through the many time consuming box surveys where we usually find a wide array of other wildlife species occupying them.
These were some deserted blue tits eggs found this year in a dormouse box.
Volunteers again gathered on different days, to form teams to check all the boxes in the various locations in our conservation area.
Wood mice nests were found in plenty along with the tit’s nests.
The team members again selected individual roles to improve the efficiency of the checks.
This greatly increased our progress around the sites which required crossing several streams and negotiating some difficult terrain.
With many locations allowing only single vehicle access, which made car sharing necessary, the teams had to be small. For some of the larger locations this meant extended survey periods were required. These were some of the volunteers who recently worked through the morning and into mid-afternoon to complete one of the surveys. They are shown having a sit-down break to have lunch midway through the day.
This is a wood mouse captured in one of the boxes. Some boxes contained pairs of mice.
All nesting material was left in the boxes where wood mice were discovered so that they could continue using it. The mice were either returned to the box or released after the inspection. In all other boxes any old nesting material was removed in readiness for possible later occupancy by dormice.
This box was found to contain an old dormouse nest although there was no sign of recent occupancy. The find however, reveals to us that however scarce they have become, there is still a local presence to be nurtured.
A new addition found in our boxes in our later surveys this year was the Common Shrew. These delicate creatures were found in two locations, further indicating their value for all species of wildlife.
Adjacent to one of the last boxes examined this year, a woodpecker had been practicing its hole-drilling skills….
….and another box we had found to have been visited by the Grey Squirrel species that plagues all our wildlife projects, and was removed for hopeful repair.
Again we are very grateful for the valued help from our group volunteers who enable all our conservation work to be achieved. Volunteers are essential to assist with installing group wildlife conservation measures and equally so for maintaining their effectiveness with surveys and maintenance.
Neighbours like us to prevent brush and scrub penetrating their gardens by keeping their boundaries clear.
The removed tree was becoming a threat to an adjacent greenhouse beyond.
At the beginning of the year we began clearing the fallen branches and twigs from the winter storms.
Spreading bramble was cut back in readiness for spring flowers to emerge.
All debris was removed and transported to a remote bonfire site for disposal.
Teams of volunteers braved the soggy ground and freezing conditions to access all remote box locations.
The ground quickly becomes a quagmire where feet and equipment linger.
All attending, participate enthusiastically to address the cleaning and maintenance issues.
This work is usually accompanied by strong, cold, winds, so hand and body thermal insulation is essential.
Usually any barn owl occupying the boxes flies out on our arrival and returns when we have finished.
Each damaged or rotten box was removed….
….and a new one was erected in its place.
This work required many hands….
….to erect the boxes and transport all equipment over wet fields.
This box was discovered blown down after a heavy storm.
A new one was purchased and it was quickly replaced.
Each team member has a valuable role to play….
….to ensure the speedy re-establishment of a well-used barn owl roost.
We provided several similar tawny owl boxes throughout our conservation area.
On our arrival bluebells and other wildflowers were beginning to capitalise on the cleared ground.
Birds were nesting in the bird boxes and the meadow was becoming a lush, green landscape.
Each day more woodland flowers appeared.
Meadow areas infected by spreading bramble patches were tackled by our volunteers….
….and woodland bramble re-emergence was quickly curtailed.
These measures proved very effective….
….and we soon were admiring common-spotted orchids….
….amongst many other wildflower species.
Each species began attracting its own insect following and the area became an asset to nature.
A beech tree donated by a parish resident and planted by us was springing to life….
….and a wild-service tree purchased by the Parish Council for us to plant began shooting up into a very healthy specimen.
Everywhere flowers were growing in colourful patches….
….creating opportunities for other species to flourish.
With neighbours located close by and members of the public using the footpaths around the area….
….our volunteers have to sensitively balance the sometimes conflicting needs.
This hedge was reduced in width to address the concerns of a neighbour.
When trimmed back it also allowed access to the adjacent path heavily used by dog-walkers.
The paths and the areas around the seats provided for public viewing and relaxation are always tended for ease of access.
All debris created is disposed of in a set location at the rear of the site….
….with attention given to the direction of the wind to ensure the smoke does not create complaints from neighbours.
This is one of the many indigenous frogs capitalising on our volunteer effort.
The additional hands proved to be very useful….
….when combining with our own volunteers.
Unwanted spreading tree saplings were quickly removed….
….from many parts of the meadow.
Bramble spreading outwards from the woodland was cut back.
The large anthills were not visible and had to be exposed.
A rampant patch of ragwort was removed….
….to prevent the inevitable spread across the meadow….
….as its presence alarms residents of neighbouring properties.
The meadow cut then began.
The tractor and cutter efficiently tackled the tall growth….
….and soon completed the task.
Within a short space of time the meadow cut was finished….
….and ready for the raking to begin.
For this task we were joined again by 50 students from a local college.
They quickly began raking up the hay into rows….
….which would be later collected up and stacked in piles.
This additional help was invaluable….
….and allowed a quick conclusion to be achieved.
The group manned a display table at the Hurstpierpoint & Sayers Common Parish Council AGM….
….to publicise the group’s work….
….and hopefully recruit more volunteers.
Shortly afterwards we repeated this with a display table at Hassocks Parish Council AGM….
….with group publicity and volunteer recruitment the main aim.
At the end of August our group held a special public talk on barn owls which was extremely well attended.
As a prelude to the talk, we presented a group introduction and summary of our own work….
….before handing over to our distinguished speaker and barn owl expert, David Ramsden MBE.
David captivated the audience with his knowledge of barn owls and their requirements which made the event a huge success.
In September we held a group stall at the Hurstpierpoint Super Sunday event.
This allowed us to discuss our work with many people….
….and recruit more supporters and volunteers.
These events are a lot of additional work for an already very busy group to organise….
….but provide us with publicity and allows us to promote the cause of nature conservation.
Always anxious to promote nature conservation, we recently undertook some work for Albourne Parish Council….
….and erected bird boxes within their Millennium Garden.
We will, like all other of our wildlife provision boxes, monitor and maintain them to ensure their continuing benefit to the species that occupy them.
Our demanding winter maintenance schedule to maintain each box within the barn owl conservation area provides the basis for our breeding success.
Four barn owl eggs found on an initial breeding survey this summer.
Three kestrel eggs found during the same tour around all the boxes.
Four little owl eggs found in a tree hole near to a barn owl box.
A tawny owl box mounted in a wooded area.
Three kestrels found that had reached an advanced stage of growth.
All boxes in the barn owl conservation area are initially checked in early summer.
An initial clutch of barn owl eggs found this year.
When the chicks hatch they are mostly bald and with eyes tightly shut. They need the attention of the parent to keep them warm until they produce sufficient down to maintain their own body temperature.
A typical variation in barn owl sizes found in one box this year.
Five young kestrels found in a barn owl box this year nearing the preferred size for recording them.
The parent barn owls usually detect our approach on these initial visits and fly out of the box before our inspection.
A barn owl flying along a field hedgerow from a nearby box.
Another one who chose to leave before we arrived at its nest box.
On the initial inspection we make no attempt to record the adults, although their presence and location are noted.
Some remain in the box until we are about to open the door. In these cases we often get covered in excrement as they invariably discharge themselves when suddenly flying out.
When the barn owl chicks are just hatched, they are very vulnerable as seen here.
They huddle together for warmth and security.
Similarly kestrels find safety and increased temperature in a group.
On odd occasions we find boxes containing late developing young jackdaws. Not our favourite discovery due to the considerable mess their mud and twig nest building creates inside, but we leave them undisturbed to continue their development.
This box contained the ideal result we seek. Four strong and healthy barn owl chicks advancing towards adulthood and the perfect size to record.
These were kestrels we returned to ring and record after the initial visit. They have just been gently returned to their box after having had identification rings attached to their legs.
Similarly, recorded barn owls are carefully returned to their nest box after ringing. They always gather together when they initially are placed back in their home.
They soon perk up however, when we close the door.
The ringing and recording visits are the best time for us…..
….as this is the time we can get close enough to examine them to make sure they are healthy and happy.
It also allows us to appreciate the beauty of this wonderful species.
This is the first time most of them have seen the world outside their box….
.…so they gaze around absorbing the new sights and sounds.
Then we return them to the secure environment they are familiar with.
Kestrels undergo this experience too….
….and after being sensitively ringed and recorded are also place back in the safety of their boxes.
Each small barn owl is gently weighed, measured, sexed and their details recorded.
The activity allows each to have their health checked to ensure they have the best chance of fledging.
This time spent with each owl is precious to the recording team and provides a gratifying return for the conservation effort expended.
Each downy handful held at the recording stage will hopefully develop into a magnificent adult….
….and eventually produce young of its own to further increase the barn owl population in our surrounding countryside.
Volunteers capitalise on dry intervals to undertake the bat box surveys.
Aware of the short duration of each dry opportunity….
….the inspections were progressed as speedily as possible.
Every box in the wide area of local countryside was carefully inspected and the occupants recorded.
Team members worked together….
….to transport ladders over the long distances it was necessary to travel.
At the end of the final woodland survey and the last record is entered, the team members relaxed.
Due to the unfavourable weather conditions….
….only the hardy Common and Soprano Pipistrelles were found in the majority of boxes.
Most boxes however, were found to be full of droppings….
….indicating that they had been well-used prior to the onset of the bad weather.
Bats were present only in ones and twos in many of the boxes….
….making it initially appear their numbers were down on previous years.
Other boxes however, told a different story….
….and were found to contain clusters of up to seven.
This was still less than previous years when groups up to a dozen were often found.
The number of boxes occupied were similar to recent years….
…but the variety of species normally found….
….were sadly lacking.
It is hoped that the next season’s weather is significantly better and the number of species found are greater and include the rarer ones we have previously found in our boxes. The results overall were however, higher than we had anticipated in such unfavourable conditions.
The boxes were visited at monthly intervals when possible.
Occupancy of each was recorded. This one contained one of the many resident wood mice found.
These inspections were undertaken by working parties of licensed volunteers.
Each volunteer undertook a different role to make the operation proceed as smoothly as possible.
This box contained a wood mouse nest.
This one contained a nest of birds eggs.
A devoted bluetit mother remained firmly on her eggs in this box. She was disturbed as little as possible.
This box contained young chicks who were at a more advanced stage and obviously very hungry.
Young birds were found in many of the boxes in early summer.
These eight great tit youngsters were almost fully feathered. Once all birds nests were emptied after the birds had fledged, the nesting debris was removed so that they were available for dormouse occupancy again.
Inspections carried out in mid summer after the birds had vacated the boxes, found wood mice had moved into many of them.
Again, the occupants were treated delicately with as little disturbance as possible.
All boxes containing food stores were left intact to benefit the breeding mice.
Each member of the team worked together to ensure inspections were carried out as efficiently as possible.
This mouse was found having a meal in a food store.
Each finding was recorded….
….to create a comprehensive annual record of everything found.
Inspections undertaken at the end of the season found an increasing number of boxes occupied by wood mice….
….with a large number utilised for food storage….
….and new nests….
….to ensure the mice successfully survived the imminent winter conditions.
Once the final check was completed all results were collated and the data forwarded to the national database.