It’s been about 30 years that I’ve been trying to find this book again; I read it for the first time in either the first or second grade (so the late 80s, early 90s, but I think it was published before then). I never got to finish it, because it was a school library book that was immensely popular among my peers and I after my teacher had read a chapter for story time, and I was never able to check it out again. The parts I remember most clearly are: The book cover, either the cover itself or the inside cover, had a picture of a blond boy in a sailor suit that I feel was common in the early 1900s. This boy was the protagonist, and the only other part I recall is that a canary came to his bedroom window and whisked him away to what I believe was a fantasy world where he had multiple adventures. It may have been part of a series.
Lost Classics of Teen Lit: Name That Book! 