Many birders do not keep track of what they have seen, and some even look down upon listing, especially competitive listing or "twitching." I, however, do keep a life list and lists for various localities. Here are the numbers from 2005.
- Species seen in 2005: 217
- Overall life list: 252
- Life birds from 2005: 12
- Species seen in DC in 2005: 143
- Overall DC list: 181
Species seen in states outside DC in 2005
- New Jersey: 166
- Maryland: 127
- Delaware: 112
- National Arboretum, DC: 106
- Kenilworth Park and Aquatic Gardens, DC: 89
- Bombay Hook NWR, DE: 85
- Sandy Hook, NJ: 78
- Great Swamp NWR, NJ: 78
- Rock Creek Park, DC: 67