RSPB Leighton Moss Grit Trays

RSPB Leighton Moss boasts the largest reed bed in north-west England and is home to a wide range of spectacular wildlife including otters, bearded tits, marsh harriers, egrets and red deer.

Recorded clips and live stream from the causeway grit trays at RSPB Leighton Moss.
Grit trays are used by beaded tits to obtain gravel to help them digest their winter diet  which includes seeds.
https://www.rspb.org.uk/birds-and-wildlife/wildlife-guides/bird-a-z/bearded-tit/