birding-aus

Melbourne sparrows

To: "'birding-aus'" <>
Subject: Melbourne sparrows
From: "Philip Veerman" <>
Date: Wed, 6 Feb 2019 16:22:08 +1100

I have some other ideas, though less from Australia. This suggests that sparrows survive very well with high density humanity. I think this is largely correlated with the extent of messiness of the human activity. They don’t go at all well without presence of people. I visited China in 2009 and Philippines in 2014, 2015 & 2018 (combined with Singapore in 2014, these being the only times I have been out of Australia). I have no idea of changes over time, I only comment on the times I was there (leaving out Singapore because I don’t remember). There the House Sparrow does not occur but the Tree Sparrow is surely the most common urban bird and is much more common than the House Sparrow is here. There aren’t many other birds to compete with sparrows, the local bulbul and perhaps some mynas. That the Tree Sparrow is so common means it behaves in some ways differently from how it does here, I perceived them as more vocal and with a bigger vocal repertoire. I wish I could describe that better and I wish I had that opportunity 42 years ago. There are vast numbers of people and cars in the cities there, much more than here. So I don’t see how unleaded petrol or other direct human activities is an issue although decline in urban horses probably is, though that is surely an old issue. Predation is surely an issue, though probably not so much by birds. There are various species of magpies and shrikes there that are sort of like small currawongs and butcherbirds, but doesn’t appear to be enough of them to impact greatly on sparrows. Predation by cats and people is likely to be much greater. There are enormous numbers of cats and dogs in the cities and parks, mostly untended, and I watched cats hunting sparrows. I also saw street stalls of people selling “barbequed sparrows” on sticks, ready to eat, in China. Probably these were mostly sparrows but likely included other small birds, (as they were well roasted my ability to identify them was limited). Likely also happens in Philippines too, I did see boys with sling shots pursuing birds.

 

Philip

 

From: Birding-Aus [ On Behalf Of Stephen Ambrose
Sent: Wednesday, 6 February, 2019 12:41 PM
To: 'birding-aus'
Subject: Re: [Birding-Aus] Melbourne sparrows

 

Hi All,

I suspect the House Sparrow hit the perfect storm in Sydney in the very early 1990s.

1.      Increased abundance and presence of predators, especially the Pied Currawong, but also cats and, in the city centre, Peregrine Falcons.  I remember House Sparrows (adults and chicks) in nests in my house roof gutters (in Gladesville, about 10 NW of the Sydney CBD) being easy pickings for local Pied Currawongs in the early 1990s.  In fact, a pair of Pied Currawongs nesting in a eucalypt about 200 m up the street from my home regularly ambushed sparrow nestlings and tending adult birds at nests and fed them to their own chicks. The last Blackbird I saw in the Sydney CBD landed briefly on the window ledge of the then RAOU Office in Bathurst Street in 1993, I say briefly because within seconds it was taken by a Peregrine Falcon which swooped from above. I just happened to look up at the window at the right time to see it all happen.  So, I’m sure that Peregrines also took city sparrows regularly, too.

2.      Increased competition for food scraps and competitive exclusion by Indian Mynas and possibly the Australian White Ibis, but I do recall that sparrows really did decline in abundance before ibises became extremely abundant in Sydney. Possibly also excluded from areas by the build-up in abundance of Noisy Miners?

3.      Extensive use of herbicides, especially Roundup, in peoples’ gardens from the late 1980s onwards. Possibly reducing food supply (weed seeds), but also from secondary poisoning by ingesting contaminated seeds. The reason I say this is that Red-browed Firetails used to be relatively abundant in my local urban park until the council started spraying herbicides, then they disappeared.  It took me three years to convince the council to stop spraying weeds and exotic grasses, and within 12 months, the Red-browed Firetails began to occur there again, though in lower numbers.

4.      Increased urban density in inner Sydney metro areas – fewer and smaller residential gardens and more monstrous-sized high-rise apartment blocks.

5.      Disease epidemics?  The House Sparrow is a colonial bird, so you might expect infections to spread quickly.

As I said earlier, all these factors combined probably created the perfect storm.

Cheers,

Stephen Ambrose

Ryde NSW

-----Original Message-----
From: Birding-Aus <> On Behalf Of David Clark
Sent: 6 February 2019 11:02 AM
To: birding-aus <>
Subject: Melbourne sparrows

They were pretty common when we first moved to Box Hill 30 odd years ago but had completely disappeared by the turn of the century (probably around the time the Noisy Miners turned up).

They are in plague proportions on our home on the Bellarine Peninsula and I’ll have to find a way to stop them eating the chook food.

Cheers

David

Sent from my iPad

> On 6 Feb 2019, at 10:15 am, Anthea Fleming <m("labyrinth.net.au","flambeau");">> wrote:

>

> In Melbourne, there are plenty of House Sparrows in the CBD and around shopping centres. Lots of food there.  But they have largely disappeared from parks and house gardens.

> Anthea Fleming

>

>> On 6/02/2019 9:37 AM, Michael Hunter wrote:

>> Am briefly in downtown Melbourne, outside the Town Hall, and amazed at the number of House Sparrows.

>>

>> None in Sydney or Brisbane .

>>

>> What has Melbourne got that they don't ?

>>

>>                Cheers.  Michael

<HR>
<BR> Birding-Aus mailing list
<BR> 
<BR> To change settings or unsubscribe visit:
<BR> http://birding-aus.org/mailman/listinfo/birding-aus_birding-aus.org
</HR>
<Prev in Thread] Current Thread [Next in Thread>
Admin

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the birding-aus mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU