Hermit Thrush recorded 10-21-07 at 1:42 AM. The Hermit Thrush example on Flight Calls of Migratory Birds does not have the little "hook" at beginning but sound of call matches well. Presumed Hermit Thrush calls should be compared to Rose-breasted Grosbeak calls but 10-21 is getting a "bit" late for RBGRs in my part of Maryland.