Children and adults pulled together to make hay in the traditional way.
People in Stotfold, led by the local environmental group, Teasel, made hay in one of the meadows in Stotfold Nature Reserve.
The event, on Saturday, was Teasel’s second haymaking day and it was arranged after last year’s success.
Participants used traditional hayrakes on the newly cut meadow and piled the hay into informal haystacks.
Removing the grass encourages the spread of native wildflowers, some of which are becoming increasingly rare.
The piles of hay will be used as winter refuges by hibernating insects and amphibians. Next summer they may also be used by nesting grass snakes.