Beetastic

Making the most of the respite from the recent rain, the garden has proved popular with the bees.

Building upon the success of previous solitary bee boxes (http://viewsoftheock.blogspot.co.uk/2013/05/return-of-mason-bees.html), two new simple constructions (blocks of wood 5 x 8 cm deep with 8mm diameter drilled holes) are now providing over 100 new nest sites. 

With red mason bees checking them out within 5 minutes of them being put up:

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It's not only solitary bees visiting the garden, most bumblebee nests have are now established so the worker bees are making the most of the warmth and the flowering plants to provide food for the nest, including this garden bumblebee:

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And the once scarce tree bumblebee, easily identifiable by its brown thorax and white tip on it's abdomen, is probably the most common bumblebee in the garden:
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But this year there is a new visitor to the garden, a large queen. The markings on her thorax, two very faint brown stripes on the top and bottom, could be those of a discoloured tree bumblebee:

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Yet it is either late or early (for a second brood) for a tree queen bumblebee, so it is more likely to be a ruderal bumblebee (Bombus ruderatus) - identification confirmed thanks to the excellent people on Wild About Britain (http://www.wildaboutbritain.co.uk/)

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The bumblebee conservation trust (http://bumblebeeconservation.org/about-bees/identification/scarce/) describe the bee as 'scarce' and mainly found in the south of England.
In the Field Guide to Bumblebees of Great Britain & Ireland (Edwards & Jenner, 2005) it is described as a declining species which nests in old mouse and voles nests and is associated with taller open grassland and scrub.
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Hopefully this is the first of many sightings of the ruderal bumblebee and in the next few years it may become as common as the now ubiquitous tree bumblebees

Along the Lower Ock

Following Martin's previous comment, I chose to have a walk along the Lower Ock and immediately there are signs of water vole activity:
On the extruding pipe there is what looks like a water vole latrine:
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Whilst other animals will make burrows (especially signal crayfish), this one may well be  made by a water vole.
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And to confirm the feed signs, sat on a promontory is a small water vole:.

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Which then swam across the small river:
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Before climbing up the bank and feasting on the waterside vegetation which is so important for water voles:
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So it seems that at least on one part of the river, the water voles are still hanging on.  And thanks to Martin for the tip-off.

Ducklings

It takes a brave mother to raise ducklings on the Ock and this mallard has six:
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The risks for such small birds on the Ock are huge - the may be eaten by herons, otters and mink - whilst there are no obvious signs of mink, they are the most likely explanation for the recent decline in water voles. 
If that wasn't enough, overly defensive moorhens will attack and kill them as will other ducks if they get too close.
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So the probability of any of them surviving a few days is remote, let alone making it to adulthood.

Meanwhile along the Ock...

Whilst in North Abingdon, the water vole colonies seem to be doing well, along the Ock it seems to be a different story.
What was once a strong hold for water voles seems to be having another disappointing year. Previously a half hour walk along the river would result in two or three sightings and in some years as many as ten.
But instead of what should be the peak water vole breeding season, there are no swimming, feeding or fighting voles:
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Another key indicator species - moorhens - are also seem to be few and far between:
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And pair of moorhens have tried to establish a nest, but this appears to have been abandoned:

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This and the lack of water vole sightings and field signs - this year and last - could mean something serious may have happened to this once important water vole stronghold.

Although there may be some contrary evidence, this comment from Martin on my previous post:

I really must investigate these ponds! Incidentally I saw my first water vole for a few years last Tuesday, by the bridge that links the playground area of Ock Meadow to the Tescos path
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It appears that on the lower Ock there is still a water vole colony, so things may not be lost.

Meanwhile,  up in Shropshire things seem to be better, where there seems to be a water vole bonanza: http://staggsbrook.blogspot.co.uk/