Saturday 29 January 2011

Big Garden Birdwatch

The weekend of 29th and 30th January is the RSPB Big Garden Birdwatch. The simple concept of spending one hour watching the birds in the garden and recording the highest number of each bird at any one time has become the world's biggest wildlife survey. Helping to provide a snapshot of the health of the UK's bird populations and to see positive and negative population trends.
For fans of twitter it has it's own hash tag #BGBW and the results will be available in May.
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Our garden survey was undertaken between 3pm and 4pm on Saturday 29th:
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Starlings: 10
Starling have previously featured in this blog back in October and were probably attracted to the dried meal worms and the pond as a source of drinking water.
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One of the things that the Big Garden Birdwatch has demonstrated is the number of starlings recorded in our gardens has declined by 75% since 1985: http://www.rspb.org.uk/birdwatch/results/trends.aspx
South Abingdon seems to have a healthy starling population, somewhat helped by the nesting opportunities presented by roofs of the houses.
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Goldfinches: 4
A disappointing number of goldfinches, they often appear in charms (collective name for goldfinches) of between 10 and 20, but during this hour there were only four.
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Goldfinches have been a real success in recent years, possibly because of people who putting out nyger seed for them.  We stopped using this as it was often ignored in favour of sunflower hearts - as seen above, with a goldfinch trying to intimidate a chaffinch, it failed and they shared the seeds.
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Chaffinch: 3 
There have been five chaffinches in the garden at any one time, but during the survey there were two males and one female:
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Chaffinches are traditionally ground feeders, so it's interesting to see that they've learnt to use a feeder.
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House Sparrow: 2
Like starlings, house sparrows have also suffered a huge decline in recent years (50%), also recorded by the big garden birdwatch: http://www.rspb.org.uk/birdwatch/results/trends.aspx
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Sparrows also like the sunflower hearts and eat off the ground or off the feeders.
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Blue Tit: 2
Blue Tits aren't migrants, so it is good to see a pair has survived the harsh winter and hopefully they'll make use of the garden's nest box.
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Blackbird: 2
A male and female blackbird are often to be seen in the garden - either winter migrants yet to return to Scandinavia or maybe they are a residential pair returned from migrating to warmer climates in europe.  They have been digging for worms, eating crumbs dropped from the feeders and drinking from the pond:
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Blackbirds are very territorial and will chase not only smaller birds (blue tits and chaffinches) but also each other) although they do seem wary of the starlings. 
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Pied Wagtail: 1
A real surprise, I've never seen one in the garden before and it only stayed for enough time to get a quick snap.
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They are insectivorous and so it wouldn't have been interested in the sunflower hearts or meal worms, so maybe there are small flies over the lawn.
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Other birds that regularly frequent the garden, but not during the period of the survey, are collard doves, woodpigeons, dunnocks and greenfinches, but one bird that has been absent from our garden for the past couple of years is the robin.
Maybe this national survey will reveal if it is just ours, or if there has been a national decline in robin numbers.

4 comments:

  1. This is a really interesting idea for a survey. It doesn't require people to commit an entire day, so hopefully more people participate. It's fun to hear what others see in their yards! this morning there were 7 Blue Jays in my neighbor's bush, along with 1 male N. Cardinal.

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  2. Hi Anne,
    I really like these 'citizen science surveys', the internet has made them really accessible.
    I believe there is a US equivalent called The Great Backyard Bird Count - have you heard of it?
    I've just looked up Blue Jays on the internet - what a fantastic bird. Which makes more confused that people would want to introduce european birds to the US, when you have something that fantastic.

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  3. Hi there Richard, just to say the Starlings took top spot in my garden too. It's always a shame that we never see a 'normal' day at the feeders goes during the count hour. Everyone seems to find that.

    Didn't know that the collective name for Goldfinches was a Charm - thanks for adding that. It's a very apt name :-)

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  4. Hi Shirl,
    Welcome to my blog. I've added a link to your blog in my expanding blog list.
    Couldn't agree more with you, this morning we must have had a charm of about 20 Goldfinches in the garden - in fact we've run out of food and your comment has inspired my recent post on other birds in the garden.

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