Hi Michael,
I thought maybe the Beach Stone-curlews learned about finding & digging up
the pipis from the Pied Oystercatchers, but I haven't got any ideas how they
learned to break them open on a rock.
The video was taken with a Nikon P1000, a small sensor super-zoom. I was
back some distance & zoomed in, to avoid disturbing the action.
The original video was taken at best camera video resolution available, i.e.
2160/25p (3840 x 2160), aka 4K.
I edited the video with (Windows Live?) Movie Maker, which has maximum
output resolution of Full-HD(1920 x 1080).
The camera was handheld, hence a little shaky, but in the editing software I
applied 'Anti-shake & wobble correction', which uses cropping to help reduce
the camera shake.
After the bird carried the pipi up the beach & started bashing it on the
rock, I briefly stopped the video, to steady my position a little, before
restarting.
I also edited a little of the smashing out, before combining the 2 files,
but it's all one event, except at the very end where I pan across to the 2nd
bird.
Cheers, Steve
-----Original Message-----
From: Birding-Aus <> On Behalf Of Michael
Hunter
Sent: Monday, 13 July 2020 5:08 AM
To:
Subject: Curlew capers
This is an astonishing video Steve, thank you. The Beach Stone Curlews
Obviously well practiced in smashing the Pippies and very persistent.
Two queries;
Could they have initially learned by copying some other spp. ?
(Presumably it is a learned behaviour )
( We have Aus Ravens softening up large lumps of hard, stale and
otherwise inedible multigrain bread by dropping it into the birdbath a few
metres away .
And of course Kookaburras and Grey Butcherbitds among others
softening / downsizing food by repeatedly smashing it onto the ground.)
What camera/phone did you use. The quality of the video was very good.
Thanks again
Michael Hunter
Sent from my iPhone
<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>
<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>
|
