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March through late August is nesting bird season. Yolo County is home to many ground and shrub nesting birds including red-winged blackbirds, killdeer, Northern harriers, Western Meadowlarks, peregrine falcons, and some songbirds. These grassland and shrubland birds are experiencing declines populations are declining across California and the western United States due to habitat loss. Instead they are utilizing agricultural lands, ditches, and even patches of tall weeds for nesting. Human disturbances and loud noises can disturb birds and cause them to abandon nests.
Consider implementing some of the following practices to protect birds and other wildlife that may be utilizing empty fields, agricultural fields, roadsides, and field edges as nesting habitat:
Scan for nests and nesting birds - if you find nesting birds or nests, create a wide buffer around the nest to avoid disturbance.
Watch bird behavior – if you spot a bird, observe the bird’s behavior to see If they are carrying nest material or food to the same place more than once.
Aim high – set your mower as high as possible. Even 4-8 inches off the ground can spare many grassland birds and other wildlife.
Leave uncut field edges – a 10+ foot buffer around fields is sufficient to provide habitat, escape, and nesting.
Plan tree removal outside of nesting season, preferably between September to January.
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