Photo by Terry Gray
The other day there was some chatter on IBLE about apparently low numbers of House Finches and White-crowned Sparrows. While I haven't seen a slow down of finches at my feeder, I have not seen near the amount of White-crowned Sparrows as I did in early October. I wondered if that was "normal" so I used eBird's "View and Explore Data" section of their website, then clicked on "Maps", entered "White-Crowned Sparrow". It created a histogram and a map for North America for the years 2005-2009. It shows a peak in observations in Sept-Oct, a second peak in December, and then a spring migration peak in May. (click on graphs to enlarge)
Then I clicked on "Change Location" and narrowed the results down to just Idaho.
This is just one example of the great information you can pull out of eBird. One could narrow this report down further by date, by county, or even by one's personal birding location. This example also conveys the importance of submitting bird observations to eBird on a regular basis so that we have good data to share.