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Old Wednesday 1st January 2020, 02:51   #2
andreadawn
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Join Date: Feb 2017
Location: Beside the Duddon Estuary, Cumbria, UK
Posts: 225
Some waders do indeed feed at night at times, presumably partly due to tidal cycles and partly due to variations in the availability of prey which may be more active at night.

It seems to be commoner amongst the longer billed probing species which are often using tactile and taste clues to find food items, although there seems to be some observational evidence that species that primarily pick food from the surface, such as plovers, may also use hearing to help them find food items at close range in the dark.

Certainly, there is plenty of nocturnal activity on my local beaches at this time of year with both waders and wildfowl feeding. There is an interesting chapter in "The Sensory Ecology of Birds" by Graham R Martin titled "Birds in the Dark" which has a bit about nocturnal feeding by waders and wildfowl.
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