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Sometimes it's just fascinating thinking about the evolution of why some birds mimic - for instance one could spend a lifetime every time a flock [1] Sulphur c
by anenefan 2y ago
Sometimes it's just fascinating thinking about the evolution of why some birds mimic - for instance one could spend a lifetime every time a flock [1] Sulphur crested cockatoos that have decided to roost and feed nearby listening to them screech for hours and not hear any other variation of trying to mimic other bird species - but infrequently I and others will note a few when perhaps they've noted us, try to imitate phrases of those well meaning folks who set out bird feeding stations for them.
But I consider myself blessed that about 35 years ago when certainly there was a larger amount of birds species as well as general bird population, one year (unsure of season) I witnessed one particular nondescript brown bird about the same size as a magpie that had an amazing range of bird differing bird calls. I could recognise about half I thought at the time, and over a few days wondered what it's own call was. More often it made an incredibly raspy call, that was similar to both the (nocturnal) native possum and (nocturnal) flying fox species that inhabit the region. Since it could mimic so well, and the rasp was quite distinct to me from either possum and flying fox, I eventually assumed that the raspy call was its own. Why blessed - I witnessed something clever on the birds part, being chased out of a tree by another small flock of similar sized birds, it looped up high above, coming down imitating a whistling kite [2] with the flock scattering leaving the shady tree all for its own ... well ____ me, down the rabbit hole and it solves a 35 + personal mystery where when I tried to identify the bird and was made to feel stupid by those I asked for perhaps not being familiar with what either a possum or flying fox sound like and of course told I was mistaken in what I'd observed. Most likely what I'd seen was a spotted bowerbird [3] ... I haven't to my knowledge seen once since in all that time and I used to bush walk around the tropical scrub at least once a month up until a few years ago -- now less frequent.
[1] https://en.wikipedia.org/wiki/Sulphur-crested_cockatoo https://en.wikipedia.org/wiki/Sulphur-crested_cockatoo
[2] https://en.wikipedia.org/wiki/Whistling_kite https://en.wikipedia.org/wiki/Whistling_kite
[3] https://en.wikipedia.org/wiki/Spotted_bowerbird https://en.wikipedia.org/wiki/Spotted_bowerbird
> When approached by humans or other potential threats, males at bowers and females at nests often mimic the calls of predatory birds such as the wedge-tailed eagle (Aquila audax), blue-winged kookaburra (Dacelo leachii), grey-crowned babbler (Pomatostomus temporalis), grey butcherbird (Cracticus torquatus), pied butcherbird (Cracticus nigrogularis), Australian magpie (Gymnorhina tibicen), Australian raven (Corvus coronoides), apostlebird (Struthidea cinerea) and honeyeaters (Meliphagidae spp.) among others
Edit for clarity
- MrMcCall 2y agoIt's so cool for you to have been blessed like this. You may very well enjoy David Attenborough's series "The Life of Birds". I know my family has. Of course, all of DA's nature series are fantastic. "The Private Life of Plants" (6 parts) is one of my favs, but they're all great. Here's the list: https://en.wikipedia.org/wiki/The_Life_Collection https://en.wikipedia.org/wiki/The_Life_Collection The only one I didn't know about (until now) is "Life in the Freezer". He also has one-offs and the "Planet Earth" series as well. What a life! One of the very few human beings on Earth who deserves a 'Sir' in front of his name.
- anenefan 2y agoHaving not seen a live lyrebird, (they're not in Northern Queensland) watching and listening to a bird in person that could mimic equally as well some of the various birds about was something - watching the bird finally succeed in scaring off the flock occupying the tree - I did wonder if it was pure coincidence. I should point out that prior to its success, the bird sat in the tree for a time going through it's great number of different bird calls, and hopping between branches towards the flock from time to time and being chased back out of the tree only to return with another volley of calls. These loop of calls would sometimes include the whistling kite but the flock I think sensed there was no kite sitting in the branches where this bird was sitting and didn't react. At the time I just thought, oh what a strange song bird flitting about advertising its presence and it wasn't until the bird flew way above the tree and down though the top branches with the whistling kite call that I twigged there was more to its behaviour. David Attenborough's tv series I enjoy if I've got time to watch. I do believe recalling watching the same segment with the lyrebird imitating the camera.
- MrMcCall 2y ago> I did wonder if it was pure coincidence. "There are no coincidences." --Master Oogway "There seems no plan because it is all plan." --CS Lewis > that I twigged there was more to its behaviour. :-) Peace be with you, friend.