More than 100 countries will be represented in the Great Backyard Bird Count Friday through Monday.
Participants will be able to tally birds for a minimum 15 minutes on a single day, or all of the days USA Today reported Tuesday.
"Birds are superb barometers for environmental condition," John Fitzpatrick, director of the Cornell Lab of Ornithology told USA Today. "When habitats are degraded, bird populations change, and when they are healthy the bird populations grow," Fitzpatrick told USA Today.
Scientists will use data collected during this time to watch how birds travel throughout the world, and measure how healthy the birds are USA Today reported.
"There's no bad time to take a walk and count the birds," Gary Langham, chief scientist at the National Audubon Society told USA Today.
The society is collaborating with the Cornell Lab of Ornithology and Bird Studies Canada on the endeavor.
"People commonly have the misconception that if you are not an expert on birds you can't bring meaningful information to the table," Langham told USA Today. "This creates no barrier to entry. Anyone can go outside and watch birds for 15 minutes or more, and all that information is accumulated into one database."
Scientists were able to use over 33 million bird species during 2013's count, and up to 4,258 different species according to the events website.
Two-hundred and two people who participated in India during 2013's study saw more than 80,000 birds and over 500 bird species The French Tribune reported.
Over 100,000 people have taken part in past studies which happen every February as a way to make a yearly rendition of the many birds across the globe according to the event's website.
Those interested in participating this year can sign-up online, and then fill out a checklist. Returning users will be able to enter the login information they received when they signed up.
