Saturday, 30 April 2016

Cooling off

The weather has really started to cool down here at Herdsman Lake and, unusually for this time of year, so has the number of birds. The first two banding sessions of April saw 22 and 44 birds caught, and only eight birds were caught on the 23rd of April. This low number was due mostly to less nets being put up because most researchers with the group were off banding at a couple of our regional projects.

The highlights of these sessions included three Little Grassbirds, which we were very lucky to catch in the reed bed, as it won't be long before we can't access that site anymore when it fills with water coming in to winter.

A new Little Grassbird banded in April     Photo: Nick Hart

A new and retrapped Little Grassbird side-by-side. Only subtle differences in plumage were visible, with interesting differences in throat striations to be studied further.
Photo: Nick Hart
Another treat at this time of year is the flocks of Weebills passing through, and we managed to band two. These guys are Australia's smallest bird, weighing in at around 5 - 6.5 g, and banding studies have shown that despite their size they can travel large distances. There has been one record in the eastern states of a Weebill traveling 184 km. Banding studies have also shown that they can live for over 7 years.

The Weebill - Australia's smallest bird    Photo: Nick Hart
Other than that we're excited about the number of Silvereyes we've been retrapping at the lake - this has been very interesting for our study into how Silvereye morphology changes with age.

Banding summary

9th April 2016 - Species, new, (retrap)
Brown Honeyeater 1 (1)
Red Wattlebird 3 (1)
Sacred Kingfisher (1)
Silvereye 4 (3)
Striated Pardalote 4
Weebill 1
Western Gerygone 1
Willie Wagtail 1 (1)

Total 16 + (6) = 22

16th April 2016
Australian Reed-warbler 1
Little Grassbird 2 (1)
Pacific Black Duck 1               
Red Wattlebird 1
Rufous Whistler (2)
Silvereye 24 (6)
Striated Pardalote 2
Weebill (1)
Western Gerygone 2
Yellow-rumped Thornbill 1
 Total 34 + (10) = 44

23rd April 2016
Brown Honeyeater 1
Silvereye 4 (3)
Total 5 + (3) = 8


Lizzy Joyce

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