Conservationists visited the saltmarshes at dawn to monitor migratory bird populations.

Saltmarshe sits quietly on the north bank of the Ouse as a small hamlet in Laxton parish, in the East Riding of Yorkshire.

At dawn the birdwatchers walked quietly through the saltmarsh, hoping to spot rare wading birds.

saltmarsh sparrows nested among the cordgrass as the tide rose each evening.

The conservation group monitors nesting success of the saltmarsh sparrow every summer along the tidal marshes.