Tag: Ground-nesting birds

by Meaghan Lyon, Wildlife Biologist

Each year since 2017, CWF has been teaming up with partners from the USFWS New Jersey Field Office to survey the JB McGuire Airfield for grassland birds during the breeding season.  Part of a long-term monitoring project, the airfield has been undergoing habitat restoration to maintain native warm season grassland habitat. The habitat restoration efforts are nearly 70% complete with roughly 700 acres seeded since 2017 and another 100 acres to be completed the following year.

Six of the ground-nesting bird species documented at the airfield are State-listed as either endangered, threatened, or of special concern.  The eastern meadowlark (Sternella magna), a member of the blackbird family, is a State Species of Concern.  It prefers a minimum of ten to twenty acres of unfragmented dense grasses of medium height for nesting.  The State-threatened grasshopper sparrow (Ammodramus savannarum) favors patches over 100 acres containing short- to medium-height bunch grasses interspersed with patches of bare ground, a shallow litter layer and scattered forbs. The savannah sparrow (Passerculus sandwichensis), also State-threatened, requires a mix of short and tall grasses, a thick litter layer, dense ground vegetation, and scattered forbs.  Another member of the blackbird family is the State-threatened bobolink (Dolichonyx oryzivorus).  Bobolinks prefer to place their nests in areas of greatest vegetative height and density and could potentially nest in patches as small as five to ten acres.  The State-threatened horned lark (Erimophila alpestrias) nests in areas of barren ground with short and sparse cover and are quick to abandon sites as vegetation grows thicker. 

Continue reading “2023 JB McGuire Grassland Bird Survey”

By Sherry Tirgrath

Ground-nesting birds in New Jersey face many difficulties and threats that most other birds typically do not struggle with. Joey and Hamlet, the piping plover pair at National Guard Training Center in Sea Girt, were not exempt from those hardships this nesting season. We know our readers have been waiting for an update on the pair, and as a warning, their story did not end well this year. Joey lost his mate, Hamlet, to a predator attack just days before their chicks would hatch. Her body was found not far from their nesting site- evidence pointing to a bird of prey taking her out. Piping plovers and other beach-nesting birds can be easy targets for owls and falcons. They incubate their nests out in the open without the cover of dense vegetation. Man-made structures along the NJ coast often serve as roosts for raptors to monitor an area and pick out vulnerable prey. Hamlet was, unfortunately, a victim of nature taking its course, and Joey was left to rear the chicks on his own.

Continue reading “A Rough Year for Piping Plovers at National Guard Training Center”