Pfarrer P. Blasius Hanf als Ornitholog is a 1904 publication by Alexander Schaffer that presents the ornithological studies of the priest P. Blasius Hanf. Drawing upon Hanf’s own writings, the volume offers a detailed account of his observations and contributions to the study of birds. Published in German by the Benedictine Abbey’s self‑publishing arm, the work reflects the scholarly interests of early twentieth‑century natural history within a monastic context. The text spans 384 pages and serves both as a biographical sketch of Hanf and as a record of his scientific endeavors in ornithology. Though lacking a formal abstract, the book provides valuable insight into the intersection of religious life and field science during the period, making it of interest to historians of science, biography enthusiasts, and regional scholars.