On A Whimbrel & A Prayer #2
May 1, 2017
Watch out for migrating Whimbrels!
It is migration time and our satellite-tagged Whimbrels are on the move! Three of our Whimbrels departed Australia between 16-20th April and they are now in the northern hemisphere.
KS was the first bird to depart Broome on 16th April. The last signal transmitted from Broome was on 16 April at 1am. By the time the satellite transmitter switched on again to transmit data to the satellite on 18 April morning, KS has already flown 2,000km to cross the equator. Three days later, it decided to land on Xihcao wetland in Tainan County, Taiwan; a nature reserve set up for the protection of Black-faced Spoonbill and other shorebirds. Habitats there include tidal mudflats, mangroves and saltpans. There are a few records of Whimbrel tagged in north-west Australia sighted on the west coast of Taiwan, but not from this area.
The real surprise came four days later (26th April), when KS was re-sighted and photographed on the north-east coast of Taiwan in Yilan County – even before the satellite transmission came through to reveal its location. KS was observed foraging with a flock of seven other Whimbrels in one of the river channels in Xiapo wetlands, which is a popular farmland area for watching waterbirds among local birdwatchers.
Excellent photos taken by Mr. LIN Jer An show KS with its satellite transmitter intact on its back. In previous AWSG shorebird satellite tracking projects, we faced problems with satellite transmitters ceasing to function during migration. Knowing that both the bird and the transmitter are both in good condition two months after deployment and have made a long flight of more than 4,500km is a real delight!
KU was not too far behind KS, departing Broome just one day later on the afternoon of April 17th. Within a four-hour period, KU made a 200km flight, averaging a speed of 50km per hour.
The long flight continued until April 23rd, when KU landed along the coast of Xinghua Bay, Fujian Province, China; an extensive mudflat with 16,000+ waterbirds recorded for the site (China Coastal Waterbird Census, 2007), but the area is yet to receive any protection status.
JX was our last bird to be released with a satellite transmitter and is also the last bird to start migration, departing Broome on April 20th.
Over four days, JX travelled over 3,000km without stopping with an average speed of 31km per hour to reach Malanut Bay in Palawan, the Philippines.
It looks as though KS, KU and JX will all stay where they are for a while to replenish after their long flight. They will most likely depart again for their next leg of migration in a few days time.
Whimbrel LA - 2 years old
Last but not least, LA – our 2-year old Whimbrel – is still 40-50km south of the Anna Plains Station entrance to Eighty Mile Beach. We are almost certain that it will stay in Australia for the full second year of its life.
JX photographed in Roebuck Bay on 26 March 2017 by Jack Winterbottom © 2017. Used with permission.
KS photographed in Yilan County, Taiwan on 26 April 2017 by LIN Jer An © 2017. Used with permission.
Whimbrel flock flying by ALAN SCHMIERER via Flickr [CC BY 2.0]
All figures and tables prepared by Katherine Leung for the AWSG. Written by Katherine Leung for the AWSG. Edited and published with permission by Amellia Formby for Wing Threads © 2018.