Vulcan Materials Company

Norcross Quarry

Norcross, Georgia, United States

Certified through 2022

Project Name
Project Type

About the Program

The Vulcan Materials Norcross Quarry site is a working quarry located approximately 20 miles northeast of downtown Atlanta, GA.  The site is surrounded primarily by commercial and industrial zones with residential neighborhoods on the south and southeast.  It is entirely bounded by a buffer of wetlands, forested areas and interspersed open habitat.  Beaver Ruin Creek bisects the property before running through an unmanaged 18 acres of wetland area on the southeast corner before flowing into Freeman Lake. The project seeks to understand the local bird population around the mine site and from there, adaptively maintain nest boxes to facilitate nesting habitat availability. In doing so, they hope to increase the population of eastern bluebirds (Sialia sialis) and Carolina chickadees (Poecile carolinensis).

Practices and Impacts

  • Since May 2010, nest boxes have been located throughout the property. Using a strict protocol, the site maintains and relocates boxes based on site operations and observations of bird activity.
  • Bluebird boxes are checked and maintained or relocated annually.
  • Unproductive bird boxes are relocated to more ideal locations to maximize success.
  • The certification cycle period began with 19 boxes but reduced to 14 boxes due to site operation impacts.
  • Overgrown lants and shrubs are removed from box areas to retain bluebird approach openings.
  • There have been consistent increases over certification cycles (bluebird eggs increased from 89 to 97), as well as within certification cycles. There were 12 bluebirds in 2018, 31 in 2019 and then 54 in 2020. This is about a 45% increase from 2019 to 2020.