Since 1900, the National Audubon Society has conducted a bird census called the Christmas Bird Count with much of the leg work done by volunteers. All levels of birders can help, including backyard bird watchers. The data collected has been used for studying bird population trends, migration patterns, and conservation policy.

The Lancaster County Bird Club will offer several opportunities to participate in the count. Interested persons will be assigned to a team with leaders who are acquainted with their areas. Backyard birders should register with the contact person before the count to determine if their home is within the count circle and to receive instructions.

On Saturday, Dec. 17, a bird count will be held in Lititz. For details, contact Ted Nichols at 717-856-3851 or tanicholsii@gmail.com.

On Sunday, Dec. 18, a bird count will take place in southern Lancaster County. For details, contact Derek Stoner at 484-723-3348 or derekstoner@hotmail.com.

The Christmas Bird Count for Kids will be held on Saturday, Dec. 31, in collaboration with the Lancaster County Parks Department in Lancaster County Central Park, 1 Nature's Way, Lancaster. It is designed to teach children about birding and volunteering as a citizen scientist. All children are required to register with the Lancaster County Parks Department by calling 717-295-2055 and must be accompanied by an adult. Adults without children are welcome to participate in this count as well. For more details, contact John Lahr at 717-284-3497 or johnlahr324@gmail.com.

On Dec. 31, a bird count for adults will be held in Lancaster. For details, call Roger Stoner at 717-393-9030.

To learn more about the Lancaster County Bird Club, visit http://www.lancasterbirdclub.org.