National Geographic defines citizen science as “the practice of public participation and collaboration in scientific research to increase scientific knowledge.” Projects usually do not require specialized knowledge, and volunteers often train new ones.

The results of the 43rd annual Manassas-Bull Run Christmas Bird Count are in! Over seventy birders counted 17,591 birds of 79 species in this 15-mile diameter circle on December 15, 2024.

The conditions were not auspicious for the 42nd annual Manassas-Bull Run Christmas Bird Count, but the results still broke some records!

The 124th Audubon Christmas Bird Count (CBC) will take place between this December 14 and January 5, 2024.

The 124th Audubon Christmas Bird Count (CBC) will take place between this December 14 and January 5, 2024.

The results are in! On December 18, 2022, nearly 100 birders counted almost 20,000 birds of 82 species in this 15-mile diameter circle.

Would you like to help count birds and connect with other birders during the 123rd Audubon Christmas Bird Count (CBC)?

The 123rd Audubon Christmas Bird Count (CBC) will take place between this December 14 and January 5, 2023.

The 40th Annual Manassas-Bull Run Christmas Bird Count on December 21, 2021 was conducted for the 2nd year following special Covid-19 protocols.

Audubon Society of Northern Virginia’s Manassas-Bull Run Christmas Bird Count will be held on Sunday, December 19, 2021 with a preliminary online workshop on December 16. This count will be ASNV’s 40th year participating in a 122-year-old annual tradition of citizen science.

The 39th Annual Manassas-Bull Run Christmas Bird Count on December 20, 2020 was conducted following special Covid-19 protocols.

Read about the highlights of this year’s CBC from complier Phil Silas. The full report and tally are available here.

ASNV plans to hold the 39th Manassas-Bull Run Christmas Bird Count on Sunday, December 20. This year’s count will be different, in light of the pandemic.

In 2020, we are holding the Christmas Bird Count in the midst of a pandemic. What did birders do in 1918, in the midst of the Spanish flu pandemic?

The 38th Annual Manassas-Bull Run Christmas Bird Count on December 15, 2019 had the highest total of participants yet at 137 and counted over 20,000 birds of 86 avian species. The conditions were favorable, so there were many more walking miles than during the saturated conditions on last year’s count.