The new issue of The Passenger Pigeon, quarterly journal of the Wisconsin Society for Ornithology, (Volume 71, No. 2, Summer 2009) has some fine papers in it. Of course every issued number of this journal has worthwhile reading, but this one has some unique and highly-valuable new information. News of the first breeding records, and ongoing research on the Kirtland's Warbler in Wisconsin is in three excellent papers by a number of ornithologists (Joel Trick, Kim Grveles, Ron Refsnider, Jennifer Goyette), and WSO Records Committee Chair Jim Frank has a thorough paper on the activities of the RC and the hows and whys of rare species documentation. I highly recommend these.
These are not all - there are many other articles and sections of "The Pigeon" that are worth reading, in this issue and every other issue!
If you're not a WSO member and don't receive the journal, it's easy to change that - contact WSO President and Membership Chair Jesse Peterson at firstname.lastname@example.org