Showing posts with label Timed Tetrad Visit. Show all posts
Showing posts with label Timed Tetrad Visit. Show all posts

Saturday, 11 April 2009

Not Doñana!!

We're back in the UK for a week or so and back in SJ92B, our adopted tetrad for the BTO Atlas project (see post for 13th January 2009). This morning's two-hour Timed Tetrad Visit confirmed our previous view that this is not the most exciting or productive birding area but we had a pleasant enough walk recording a total of just 36 species in the process. To be fair, although the number of species was low we did see a reasonable number of birds and making accurate counts of some of the common and more mobile species wasn't easy. At times there seemed to be Wood Pigeons and Blackbirds flying in all directions!

It's still very early in the season and we would have preferred to postpone this visit until a few more migrants have arrived. Unfortunately, other commitments prevent that. As it was, the only summer visitors we found were Willow Warblers, Chiffchaffs and a single Blackcap. Maybe some of them had spent the winter in the Algarve or at least passed through on their way to or from Africa. It would be nice to think so!

As usual, we took a few photographs:

Yellowhammer - at least two pairs present

A corner of Doxey Marshes Nature Reserve

Mute Swan - at least one pair look as though they're going to nest in the tetrad

Stafford Castle or what remains of it! Nesting habitat for Feral Pigeons

Stafford Castle Golf Course - a habitat shared with the Algarve!

Tuesday, 13 January 2009

Timed Tetrad Visit

Our fifth day back in the UK and, with the sun showing at least for a while, we spent the morning on a Timed Tetrad Visit as part of the Bird Atlas 2007-11 Project organised by the British Trust for Ornithology. We volunteered some time ago to cover the tetrad SJ92B and today we counted birds in this 2km x 2km square for two hours. Timed Tetrad Visits are principally concerned with assessing the relative abundance of species so we were simply trying to determine the number and diversity of birds in our chosen area.

We chose SJ92B mainly because it is very close to our home in Stafford. It includes a small part of Doxey Marshes Nature Reserve, a Site of Special Scientific Interest managed by the Staffordshire Wildlife Trust. In addition it has a nice mix of habitats (woodland, farmland, a small lake, a golf course) and importantly a good network of public footpaths making for easy access. Stafford Castle stands in the south-west corner of the tetrad and has done for 900 years or so.

During our two hours we recorded a total of just 33 species. Mallards (8), Coots (3) and Moorhens (3) were the only 'waterbirds' and there were no waders at all apart from a flock of about 100 Lapwings that flew over and which because they weren't actually 'using' the tetrad, we couldn't include. Mostly we found finches, thrushes and tits and amongst these Lesser Redpolls were the nearest we came to a surprise. The most numerous species was Wood Pigeon (or Woodpigeon as the BTO call it). Species seen only singly were Goldcrest, Stonechat, Reed Bunting, Pheasant, Sparrowhawk and Greenfinch. We saw as many (five) Great Spotted Woodpeckers as we did Wrens which wasn't expected.


Dunnock - 7 seen today in SJ92B

Clearly SJ92B isn't the most exciting or productive area for finding birds but no doubt our small contribution will help towards eventually putting together the 'big picture' in an Atlas. Also, after several days stuck in the house, we enjoyed getting out for a walk and it was good to find several species that we haven't seen for a while. It did seem odd, though, not to find any Black-winged Stilts or Flamingos! There will be more counting to be done in the same area come the breeding season.