The glimmer turns out to be a butterfly net.
Beside it is a wooden crate full of large jars with gauze over the top where the lids go. A note painted on a wood board states that Papillions will soon be a catch and take home type of fostering from the Tir with people creating their own clutches to find. Feed back is requested as to whether people would still like a papillion or not.
The papillion horses have all disappeared at the moment, perhaps they saw the net, with nothing to catch you decide to return to the trail