Grassland Bird Nesting

Back in early June of this year, the WGNSS Nature Photography Group travelled east to Pyramid State Recreation Area in Perry County, Illinois. Here we met with Stacia Novy, a wildlife biologist working with Southern Illinois University. Stacia’s goals are to find and identify grassland bird species nests, collect morphometric, embryonic and maturation data on eggs and nestlings, and to document fledging and depredation rates. Stacia is a true professional and she took care in how we approached nests and got our photographs. She finds dozens of nests each year and collects important data used for conservation and habitat management decisions.

Stacia Novy (on ladder) collecting data on eggs and nestlings

Approximately 60% of all of North America’s grasslands have been destroyed due to agriculture and other development purposes. Unsurprisingly, grassland species in general are the most at risk birds from this loss of habitat. The numbers of these obligate grassland species have declined by 40% since 1970.

An egg buoyancy/density test is performed to determine egg age and potential viability

Due to high incidence of predation, grassland bird species must be quite careful about where and how they place their nests. Stacia showed us the types of vegetation different species like to use and how they attempt to camouflage their nests. It takes a lot of work and diligence to find these nests and we appreciated Stacia sharing some of these with us.

Stacia measures eggs

Here are some of the photos I took with my cellphone of some of the species we were fortunate to be able to see.

A Brown Thrasher parent staying on the nest until the last minute
Inside the Brown Thrasher nest
A Gray Catbird’s nest
Another Gray Catbird nest we found this day with newly hatched chicks
Beautiful eggs inside a Redwing Blackbird nest
The even more startingly-blue eggs of the Dickcissel
The same Dickcissel nest days later. Photo by Stacia Novy.
The nest of one of my top five favorite birds – the Bell’s Vireo
Bell’s Vireo eggs
The same Bell’s Vireo nest days later. Photo by Stacia Novy.