10 April, 2010

A Ruddy Long Way to Fly

"Ruddy Turnstone is a small, highly-migratory wading bird with a large global range. It breeds in northern latitudes in open tundra habitat often close to water. Outside the breeding season it is found along coastlines, particularly on rocky or stony shores. It is the only species of turnstone in much of its range and is often called Turnstone.

"We have been amazed at the feats of Bar-tailed Godwit tracked by satellite from Australia and New Zealand to their breeding grounds in the high Arctic and back", said Dr Clive Minton from the Australasian Wader Studies Group. "Unfortunately the size of the satellite transmitters, and the batteries required to power them, precluded their use on smaller shorebirds like Ruddy Turnstone".

“… it was back in south-east Australia having completed a 27,000-km round trip” —Ken Gosbell, Chairman of the Australasian Wader Studies Group

The researchers therefore decided to use new 1 gram light-sensor geolocators - supplied by British Antarctic Survey in Cambridge, England - and fitted them to eight Ruddy Turnstone spending their non-breeding season in south-east Australia in April 2009. Four geolocators were eventually retrieved from birds between 20 October 2009 and 8 January 2010.

"All four birds flew 7,600 km non-stop to Taiwan in just over six days, with three apparently travelling together", said Dr Clive Minton. They then flew on to northern Siberia, following separate paths and stopping over at different sites. "By early August, two had moved to Korea and south-eastern Siberia, respectively, but another bird returned to Australia via the Central Pacific!"

The Pacific bird spent 26 July -15 October on the Aleutian Islands before flying 6,200 km across the Pacific in four days to Kiribati, and then it made another four-day, 5,000-km flight to eastern Australia. "Five days later it was back in south-east Australia having completed a 27,000-km round trip", added Ken Gosbell - Chairman of the Australasian Wader Studies Group."

Read the whole story at: A Ruddy Long Way to Fly

I just wonder how long flights our Ruddy Turnstones make...?

1 comment:

  1. Great info! It's been a while since I visit, I hope that everything is ok over there.
    Take care!
    Greetings from Peru :)