Contact
It appears you have Javascript turned off. You can navigate the site without Javascript, but many features will not work.

What is Birds Per Hour?

"Birds per hour" is the average number of birds seen per hour spent birding within a specified date range and region. Similar to Abundance in that it gives the user a measure of the status of birds in a specific area, birds per hour goes one step further and incorporates time into the calculation providing a measure of correction for the effort expended while birding. For instance, if one spent 6 hours birding and recorded just 6 Black-capped Chickadees, the result would be 1 Black-capped Chickadee/hour. But if one spent just 1hr birding and recorded 6 Black-capped Chickadees, the result would be 6 Black-capped Chickadees/hr—indicating a higher abundance. This methodology is used for the Christmas Bird Count and allows for a useful comparison of the various methodologies available in eBird.
help@ebird.org
https://cdn.desk.com/
false
desk
Loading
seconds ago
a minute ago
minutes ago
an hour ago
hours ago
a day ago
days ago
about
false
Invalid characters found
/customer/en/portal/articles/autocomplete