They seem to be a rather favorite food with all birds of the genus Hylocichla.
Beal, F. E. L., Food Habits of the Thrushes of the...(2010)
Spiders, with a few millipeds, amount to 2.22 per cent, the lowest figure for this item of any bird of the genus Hylocichla.
Beal, F. E. L., Food Habits of the Thrushes of the...(2010)