Just curious to know what is the complete list of vagrant birds that have breed here and those of our self-introduced birds that still have slim hold of a breeding population in NZ and what is their future for growth
A couple I can think of
Hoary-headed grebe: A pair bred not to long ago. Are they still a native breeding species? Is there a chance of them becoming established? Any thing holding them back habitat wise from spreading
Barn Owl: Are they established or is it still yet to be decided if they still currently breed? Has their range grown?
Glossy Isbis: Are they an established/breeding each year since their first recorded nest in 2015 or are they just hanging in there
NOT ALL THE DOGS LOVE GOING OUTDOOR
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- Neil Fitzgerald
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Re: What rare Self-introduced birds are still breeding
Sounds like barn owls are booming, and increasingly getting hit on roads: https://notornis.osnz.org.nz/node/4369
Glossy Ibis appears to be steadily increasing: viewtopic.php?f=9&t=8662&start=10#p41220
Glossy Ibis appears to be steadily increasing: viewtopic.php?f=9&t=8662&start=10#p41220
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Re: What rare Self-introduced birds are still breeding
Galah and Sulphur Crested Cockatoo seem to be increasing in South Auckland/ North Waikato
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Re: What rare Self-introduced birds are still breeding
bombaydave2 wrote:Galah and Sulphur Crested Cockatoo seem to be increasing in South Auckland/ North Waikato
Those are introduced species that are the descendants of escaped/released pets.
- RussCannings
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Re: What rare Self-introduced birds are still breeding
Hi Fras,
In regards to HH Grebes and Wood Ducks down south I guess time will tell. Plenty of habitat so inbreeding and predators will be the limiting factors I would think.
As for others well it depends how far back you want to go. Spur-winged Plovers are doing well last time I checked!
If you have one of the full-sized copies of the Robertson guides there is plenty to read up on regarding former/current breeding status of marginal or well established Aussie imports.
Russ
In regards to HH Grebes and Wood Ducks down south I guess time will tell. Plenty of habitat so inbreeding and predators will be the limiting factors I would think.
As for others well it depends how far back you want to go. Spur-winged Plovers are doing well last time I checked!
If you have one of the full-sized copies of the Robertson guides there is plenty to read up on regarding former/current breeding status of marginal or well established Aussie imports.
Russ
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Re: What rare Self-introduced birds are still breeding
Re: Sulphur crested cockatoos and galahs - I have been reliably informed that birds are sometimes found on the west coast very tired and could quite easily have been blown across form Aus. Are there any reports or are we presuming they are released/ escaped pets.
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Re: What rare Self-introduced birds are still breeding
bombaydave2 wrote:Re: Sulphur crested cockatoos and galahs - I have been reliably informed that birds are sometimes found on the west coast very tired and could quite easily have been blown across form Aus. Are there any reports or are we presuming they are released/ escaped pets.
To my understanding, there is one record of a Sulphur-crested Cockatoo that was found exhausted after a storm and might have been a vagrant. I've never heard of a Galah being seen in a similar condition.
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Re: What rare Self-introduced birds are still breeding
There was a single galah seen at Woodhill State Forest (behind Muriwai Beach, west Auckland) on 8 Jun 1975
See Notornis 22: 331
Regards
Colin
See Notornis 22: 331
Regards
Colin
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Re: What rare Self-introduced birds are still breeding
I'd suggest that it is likely that storm blown individuals of both parrots land here on occasion - but that local populations are primarily from escapees or illegal? releases
Cheers
Jim
Cheers
Jim
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Re: What rare Self-introduced birds are still breeding
The Barn Owl is rumoured to be widespread in the northern North Island now, but to my understanding, sightings south of Northland since 2008 almost never get confirmed. I think that a road-killed one was found in Rotorua relatively recently.
The Hoary-headed Grebe appears to still be breeding at Lake Elterwater; there was at least one report of young birds being seen there earlier this year. New populations of small grebe species are quite prone to declining and dying out, so the future of this population is tentative. Glossy Ibis have probably bred at Wairau Lagoons in every summer since late 2015; where they go for the remainder of each year is currently unknown. Also, Australian Wood Duck are still present in Tasman and are possibly increasing; there was a recent report of 20 of them seen at Hoddy Estuary Park.
There was one successful breeding record of the Australian (Gull-billed) Tern in early 2021 but there has been no other news of possible breeding for this species since then.
The Hoary-headed Grebe appears to still be breeding at Lake Elterwater; there was at least one report of young birds being seen there earlier this year. New populations of small grebe species are quite prone to declining and dying out, so the future of this population is tentative. Glossy Ibis have probably bred at Wairau Lagoons in every summer since late 2015; where they go for the remainder of each year is currently unknown. Also, Australian Wood Duck are still present in Tasman and are possibly increasing; there was a recent report of 20 of them seen at Hoddy Estuary Park.
There was one successful breeding record of the Australian (Gull-billed) Tern in early 2021 but there has been no other news of possible breeding for this species since then.