Grassland Bird Program

Field © Nick Sarfaty Jackson
Field © Nick Sarfaty Jackson

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The farmlands and open fields of New England would not be complete without the iconic grassland nesting birds that use those habitats as a nursery. Across the US these grasslands, dominated by true grasses as well as other low-growing “weeds”, are becoming rarer as fields are developed or farmers convert  from hayfields to new crops, like corn. With this loss of habitat comes alarming declines in both the range and abundance of many grassland nesting species.  

That loss is bad for the birds as well as the farms because these birds provide incredible value, especially to working farms, by hunting the pests of crops and hayfields.

During the summer savannah sparrows, bobolinks, eastern meadowlarks, and the state endangered upland sandpipers, and grasshopper sparrows nest in our large fields. Without our working landscapes of agricultural and open-space fields, breeding grassland bird species would not exist in Massachusetts.

We must find innovative ways to share the space, and”buy the time” for these species to simply raise their young.


A Steep Decline

Grassland birds are disappearing at an alarming rate. Between 1966 and 2012, they have experienced steeper, more consistent, and more widespread population declines than any group of birds in North America. In Massachusetts, many breeding grassland birds are identified as needing urgent conservation action.

Although the loss of agricultural land and open fields threatens these species, their decline is hastened by the intensification of farming practices—simply, many fields are now being mowed earlier and more frequently in the summer than they were in the past. These changes are detrimental to ground-nesting grassland birds, as their eggs and nestlings are directly exposed to haying machinery. Those adults that do survive the mower blades may not have enough time to complete a re-nesting attempt before migrating south to their wintering grounds.


Taking Action to Protect Grassland Birds

Owners and managers of meadows, hayfields, and pasture land can make a real difference in protecting these species by implementing bird-friendly management practices. Our task is to find creative ways to make safe havens on private and public lands for these birds to raise their young, such as The Bobolink Project

To help landowners and managers understand this issue and develop sustainable management practices, Mass Audubon has developed several strategies.

Best Management Practices

Mass Audubon’s Bird Conservation team has developed an informative document that outlines best management practices for nesting grassland birds for fields owned by municipalities, land trusts, private landowners, and conservation groups.

Research and Monitoring

In addition to the above, Mass Audubon continues to research and monitor the state of grassland birds, working on our wildlife sanctuaries and with partners on a regional level. 

Learn about our research & monitoring work >