Gunnels are hard to swallow! - Bob Armstrong's Nature Alaska

https://vimeo.com/334457017

Gunnels are hard to swallow! shows a Great Blue Heron attempting to swallow a probable Crescent Gunnel.
Notice also towards the end a Northwestern Crow picks up a gunnel and flies off with it.
To learn more about these fish look at Crescent Gunnel by State Conservation Status, Element Ecology & Life History Author(s): McClory, J.G. and T.A. Gotthardt.