| This
website is under construction. The following is an example
of the type of waterbird information that should shortly
become available
In the mean time, click
here for a summary of trends and distributions
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Mallard Anas
platyrhynchos |
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The Mallard is one of our most familiar waterbirds. It
is a relatively large, heavily built duck. The female is
mainly brown with an orange bill. The male has a bottle
green head, a yellow bill, is mainly maroon-brown on the
breast and grey on the body, except during eclipse, when
the plumage resembles that of a female, except in retaining
the yellow bill. Both sexes have a distinct dark blueish
speculum, bordered by white margins.
It is a resident species found on many waterbodies throughout
the UK. Although easily detected during WeBS counts, this
is a species that is widely dispersed throughout lowland
wetland habitats and consequently, many birds on smaller
lakes and rivers go uncounted.
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| Population |
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International threshold:
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20,000 |
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Great Britain threshold: |
3,520 |
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All-Ireland threshold: |
500 |
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Maximum counted by WeBS in 2004/05
(GB):
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140,112 |
(Dec) |
| Maximum counted by WeBS in 2004/05 (NI): |
6,694 |
(Nov) |
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Click here to see an explanation of population thresholds and
how these are derived |
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Click here to obtain more information on populations from BirdFacts |
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| Trends |
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Northern
Ireland |
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Click
on image to see larger version |
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Click
on image to see larger version |
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Click here to see UK constituent country trends |
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Click here to see UK regional trends |
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Click here to see monthly indices |
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Click here to see a map of UK regions |
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Click here to see breeding trends from the Wider Countryside
Report |
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| Distribution |
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| Distribution
based on WeBS counts |
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Geographical
overview of change in numbers |
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Click
on image to see a larger version |
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Long-term = 25-years;
medium-term = 10-years; short-term = 5-years
Click on image to see a larger
version |
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Click here see Atlas distribution maps |
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Click here see BBS distribution maps |
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| Sites |
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Click here to see an overview of the numbers on internationally
important, nationally important and other sites |
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Click here go the WeBS Alerts report and see trends on specific
designated sites |
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