A film and many questions…

Back in April our Young Naturalists group were joined by Paul from Strong Island Media who came along to film them engaging with nature and participating in a number of different activities. As a result, we had a brilliantly varied session and Paul was able to produce a fabulous short film of them chatting about their experiences and their interest in wildlife, a brilliant snapshot of the group and a great piece of promotional material.

The group did a fantastic job and the film is available here: https://youtu.be/GSyY1C_upvg , please do take a look and share it with anyone you think may be interested in seeing it or possibly joining us at future sessions.

Slightly less polished was our very wet session at the end of August, although at the time the pond was certainly grateful for a top up. We tidied the area at the back of the centre, weeding the gravel and cutting back the bramble and other vegetation that was coming through the fence by the pond. It was a soggy task!

We did then retire to the classroom where the group had a lot of fun dissecting owl pellets, an activity we had been doing that week on our Wild Days Out. I had been hoping someone would find the skull of a small bird amongst all the small mammal skulls (just for a bit of variety!), however Lysander managed to go one better discovering a bit of metal instead which we were excited to discover was a bird ring.

Bird ringAfter studying the bird ring under the microscope to decide exactly what was written on it, we settled on Poland St. Orn. Gdansk JA 40684 and submitted it online via Euring Web Recovery to see if we could find out more.

Unfortunately, we have had our pellets at Blashford for a rather long time and are not entirely sure when we got them or even where they came from, with Testwood Lakes and even Lincolnshire via Jim both possible candidates. But it was still incredibly exciting to have found the ring of a bird originally ringed in Poland and exciting to see what else we could discover about its life via the Euring Recovery programme.

So the results? Our bird was a dunlin, a wading bird slightly smaller than a starling and one we do get in small numbers from time to time at Blashford. It is the smallest of the regular wading birds found on our local coastline and they can be seen here all year round, preferring estuaries where they eat insects, worms and molluscs. Locally the largest numbers are present in the winter and these birds will depart in the spring to their breeding grounds of Northern Scandinavia and Russia. The dunlin seen overwintering in the Solent are not the same birds seen in the summer.

This particular bird was ringed in Ujscie Redy, Gdanskie, Poland by Wlodzimierz Meissner Kuling when it was in its second calendar year but it is unknown whether it was male or female. Ringed on 30th July 1983, the ring is now 35 years old with the bird possibly 37 if alive today. According to the BTO the oldest recorded dunlin was 19 years, 3 months and 26 days (record set in 2010) so I suspect ours had been dead and languishing in an owl pellet for a considerably long time.

It was fascinating to learn a little bit more about this particular bird and fingers crossed it did live to a ripe old age before its unfortunate demise. Not knowing where the pellets came from (in terms of geographical location and owl species as they had begun to disintegrate) or when the pellets were found the ring discovery does raise a lot of questions:

– which owl species eat dunlin (from a quick bit of research Short-eared owls possess the ability to take shore birds and seem the likeliest candidate, with pellets taken from Farlington Marshes during the winter of 1970-71 illustrating this, however Barn owls are also capable of taking larger birds as prey).

– was the wader roost raided, was the bird a solitary target or was it already sick or injured?

– did the owl migrate or the dunlin, and if it was the owl where was it feasting before its migration? I have really been assuming it was the dunlin, but there is always a chance it was the owl. It can take up to 10 hours for an owl to regurgitate a pellet, I have no idea how long it would take for an owl to fly from mainland Europe to the UK, this dunlin could have been its last meal before that flight…

– when did the owl eat the dunlin?

Sadly we will never know, but it has been fun and very interesting thinking about it!

RS1085_KeyhavenDunlin_Thea_Love_30.01.11

Dunlin at Keyhaven by Thea Love

Our Young Naturalists group is kindly supported by the Cameron Bespolka Trust

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Fitting it all in…

At the end of April our Young Naturalists were joined by Paul from Strong Island Media, who had come along to take photos and film them during a session. As a result we managed to fit in a number of different activities to showcase what we get up to and enjoyed a very varied day!

Whilst Joel and Vaughan headed off to the Woodland Hide with Nigel to photograph birds the rest of the group opted to pond dip, something we hadn’t actually done in some time. We caught a number of dragonfly nymphs, water stick insects, some fabulous cased caddis fly larvae and a smooth newt. We also spotted a large red damselfly on the edge of the boardwalk, so moved it to a safer spot away from our tubs, nets and feet.

We then had a look through the light trap which we had begun to put out more regularly with the weather warming up. The trap unfortunately didn’t contain an awful lot as it had been cold the night before, but there were a couple of very smart nut tree tussocks along with two Hebrew characters and a common quaker.

Volunteer Geoff had very kindly made up some more bird box kits for the group to put together, so we tidied away the pond dipping equipment and they had a go at building the boxes:

Brenda has been keeping us posted on the activity going on in the nest boxes the group made in October and we put up in January, using them to replace some of the older boxes on the reserve. Out of the twelve boxes made, six are active with the others either containing a small amount of nesting material or nothing: Poppy’s box contains 11 warm eggs and the female is incubating them; Geoff’s box contains 7 hatched, naked and blind blue tit chicks along with 2 warm eggs hopefully to hatch; Ben’s contains 3 downy and blind great tit chicks which will hopefully be large enough to ring when Brenda next checks; Will H’s box contains 7 naked and blind great tit chicks and 2 warm eggs hopefully still to hatch; Megan’s box contains 7 downy and blind blue tit chicks and 1 warm egg which may not hatch and finally Thomas’ box contains 9 warm great tit eggs.

Brenda has also been taking photos of some of the boxes for us to share with the group:

Thank you Brenda for continuing to update us on the progress of our nest boxes, we look forward to the next one!

After lunch we headed down to the river to see what else we could catch. Again we haven’t done this in quite a while so it was nice for the group to get in and see what they could find. We caught a stone loach, a dragonfly nymph, a number of bullhead and a very smart demoiselle nymph:

Finally, those who joined us in February were delighted to see the willow dome is sprouting. As the shoots get longer we will be able to weave them into the structure, giving it more shape and support.

willow dome

Thanks to Geoff and Nigel for their help during the session and to Paul from Strong Island Media for joining us, we look forward to seeing his footage of the group and being able to share it to promote the group and our work.

Our Young Naturalists group is kindly supported by the Cameron Bespolka Trust.