|Pacific Golden Plover, Pluvialis fulva.|
Perhaps not much to look at, but the bird in this picture has arrived here in Alice Springs all the way from the northernmost reaches of Siberian Russia or Alaska. To avoid the frigid northern winter, migratory birds like this Pacific Golden Plover, undertake flights as long as 13000 kms. Most birds will make at least one refuelling stop along the way in places like the Saemangeum in South Korea, and the Yangtze River estuary in China. A few birds, however, have been shown to make non-stop flights of up to 9000 kilometres, flying for 7 days or more without touching down.
Researchers have only just begun unlocking the secrets of these amazing long distance endurance and navigation skills. It seems that they might shut down one half of their brain while flying. This means the other half can effectively “sleep” while the bird is on those marathon flights across oceans.
50 million migratory birds navigate from the Arctic to Australia and back again each year using the movement of the sun, moon and stars. Some are barely the size of a budgie.
A lucky few will call Alice Springs home for the summer, until the stars tell them the time is right, and they will head back northwards once more.
Sightings this week:
- Barn Owls everywhere. Lots of reports of these night birds out at night hunting rodents
- 8 Glossy Ibis, 4 Pelicans and 2 Nankeen Night-heron at Lake Mary Ann in Tennant Creek
- Danny from Bush Bus spotted some Bustards and young Emus while negotiating floodwaters on the Lasseter Highway during the week