Deb Nofzinger and Dave Wilkins recommend several mobile applications for birding enthusiasts, including eBird and Merlin Bird ID, both associated with the Cornell Lab of Ornithology. eBird operates on a donation model and allows users to maintain detailed bird lists, track sightings, and utilize a Hotspot function for prime birding locations. It has recorded 149 species at Earth Heart Farms since its addition, with 78 species identified this year. Wilkins has completed 239 checklists at Creek Bend Farm Park and observed 137 species there. The Merlin Bird ID app offers a sound identification feature for 1,382 bird species and is noted for its accuracy in familiar environments. Other suggested apps include BirdCast for migration updates and the Sibley Birds v2 app, priced at .99.