Yellow Thornbills in the garden

To: 'John Brannan' <>, "" <>
Subject: Yellow Thornbills in the garden
From: Philip Veerman <>
Date: Wed, 7 Feb 2018 06:54:34 +0000
I also noted and mentioned on this line, about having a flock (I put 10 on my 
GBS chart, which was as good a guess as I could get) of Yellow Thornbills in my 
local park last week (in my message about the Pacific Swifts). I also had 4 in 
2 adjoining weeks in August and I would have had them in many of my years here.

Summer attendance in the suburbs is not within trend for them, although numbers 
start to increase during late summer.

This from The GBS Report:

Yellow Thornbill Acanthiza nana
This species occurs most often in dense stands of wattles and other shrubby 
bushes bordering on open country and river edges, where it feeds in the mid 
canopy level. It is the only local thornbill that is generally rare in the 
suburban area. It is probably the least conspicuous in behaviour of all the 
local thornbills. It can easily be overlooked or mistaken for Weebills or 
Striated Thornbills. It is interesting to notice then that it almost only 
occurs on the charts of more experienced observers and mostly at sites that 
border or are close to Canberra Nature Park. Although recorded each year, it is 
the only thornbill with periods of several months with no observations. Even 
so, the monthly pattern is rather similar to the other thornbills in dipping to 
the lowest levels in late spring. However after that they climb fairly evenly 
to a narrow peak in June before declining again. Long-term abundance has varied 
greatly, with broad peaks and troughs spreading over several years. Although 
given the above considerations, that could easily be an observer artefact. Only 
breeding activity is a copulation in March, a nest building in July, and 
dependent young in October.
Graphs on page: 98, Rank: 92, Breeding Rank: 65, A = 0.01682, F = 7.99%, W = 
20.1, R = 0.906%, G = 1.86.


-----Original Message-----
From: John Brannan 
Sent: Wednesday, 7 February, 2018 5:19 PM
Subject: Yellow Thornbills in the garden

Hasn’t happened before, but this Summer I’ve had Yellow Thornbills in my back 
garden here in Florey twice now — one bird in late November and a group of five 
yesterday, plus another one I spotted in my sister-in-law’s garden in Giralang, 
also in late November. Presumably this is part of a previously unseen (by me) 
dispersal that happens every year?

John Brannan

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