NYC bird list postings aggregator

Experimenting with the Yahoo Pipes site I created an RSS aggregator based on the message archives of four NYC area birding lists (eBirdsNYC, SINaturaList, BTBlue, NYSBirds-L)

http://pipes.yahoo.com/philjeffrey/nycbirds1

Which, in a certain amount of duplication, also contains this blog (disabled for now until I can filter it more effectively).