Swallows and More

I was out early doing a breeding bird survey off-site this morning and when I arrived at Blashford it was to be told that I had just missed a red-rumped swallow. This Mediterranean nesting cousin of our familiar swallow occurs as a regular, but still rare, migrant at this time of year, some of them migrate north with a bit too much vigour and over-shoot their intended destinations. They usually turn up in flocks of swallows and martins at places like Ibsley Water, so it was something of a surprise that we had not got a reserve record before now. It was reported again about an hour later and I did see a bird that was supposed to be it, but I could not convince myself that it was and before I could get a better look it flew off. One that got away!

However there were lots of other birds, at least 850 mixed swallows and martins, I estimated about 400 sand martin, 250 swallow and 200 house martin. There were also at least 6 swift, although I was told there were many more. Scanning around I also saw a red kite, 2 raven, at least 8 little ringed plover in an aerial dash past the hide and lots of buzzard. On the ground I saw my first common sandpiper of the spring and a white wagtail.  In addition the first summer little gull was still there as were at least 6 common tern.

The main work recently seems to have been raft related. We are building a new set of tern rafts with money from a grant given by Hampshire Ornithological Society (HOS). A few days ago we launched the prototype before we get on with building the new fleet.

tern raft

Although the common tern are starting to arrive they won’t be getting down to nesting for a little while yet unlike the resident birds. In the last few days I have found nests of both blackbird and song thrush. The pictures show the differences between the two, the eggs of song thrush are clear blue with black spots, clearly distinct from the more muted colours of the blackbird eggs. You can also see the difference in the nests themselves. Blackbirds have a lining of grass whereas song thrush have a smooth render of mud that dries to a hard shell and no lining at all.

blackbird nest

song thrush nest

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