FAIRFIELD - A life passion for 16-year-old Alex Burdo is birding: a hobby that involves observing birds in their natural habitats.

Burdo has birded for years across the country, but a life-threatening cancer may stop him from continuing his hobby.

Today, a group of volunteers rolled up their sleeves, grabbed shovels and started digging in Fairfield to build a bird garden that will fulfill Burdo's wish to keep his passion alive.

For nearly five years, Alex has been battling osteosarcoma, a type of bone cancer that is found in children. Since his diagnosis, he has undergone seven surgeries, with the latest being this month.

Burdo’s grandfather says that he has attained more birding experience in his 16 years of life than most people do in their entire lifetimes.

In order to facilitate Alex’s continued birding experience, family friends got together two weeks ago and devised a plan that culminated in the bird garden being built in his backyard.

Alex is being treated at Memorial Sloan Kettering Cancer Center in New York City and is scheduled to return home tomorrow, when he’ll be chirping with glee as he finally sees his big surprise.

The volunteers raised over $6,000 to purchase the equipment to build the garden. They also donated to a foundation to help research a cure for Alex's cancer.