I came across an interesting behaviour from a Greater Yellowlegs today. Watching through the viewfinder I knew something was coming up (pun intended) when this guy opened its mouth way wide and started to contract its' outstretched neck. Owls are famous for ejecting pellets but I never was aware, until today, that some species of shorebirds also did this (some plovers, turnstones). After some small research I found out that some do this when their diet consists mainly of fish. I guess we learn something new every day! This image, although technically not ideal, nicely documents what I saw and though it interesting enough to share with you...
Daniel- Very interesting to see this in shorebirds although not surprising I suppose. At least I am aware of gulls and skuas/jaegers producing pellets of bones (mainly fish, but whatever they are eating), mollusc shells, beetle elytra and feathers etc, and likely other species groups do as well. Shorebirds and gulls/jeagers are closely related.
I got this image of a Whimbrel yacking a pellet. Unfortunately my timing was a little off and just got it as it was hitting the water. I have seen other shorebirds also do this.
Pellet ejection in shorebirds.
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