1. Bird bone Bookmark Museum number: 1-102645 Object class: Bird bones Collector: Francis A. Riddell and Harry Starr Riddell Jr. Collection place: CA-Las-1, Lassen County, California Collection date: March 1949
2. Bird bone Bookmark Museum number: 1-102593 Object class: Bird bones Collector: Francis A. Riddell and Harry Starr Riddell Jr. Collection place: CA-Las-1, Lassen County, California Collection date: March 1949
3. Bird bone Bookmark Museum number: 1-102642 Object class: Bird bones Collector: Francis A. Riddell and Harry Starr Riddell Jr. Collection place: CA-Las-1, Lassen County, California Collection date: March 1949
4. Bird bone Bookmark Museum number: 1-102635 Object class: Bird bones Collector: Francis A. Riddell and Harry Starr Riddell Jr. Collection place: CA-Las-1, Lassen County, California Collection date: March 1949
5. Bird bone Bookmark Museum number: 1-102598 Object class: Bird bones Collector: Francis A. Riddell and Harry Starr Riddell Jr. Collection place: CA-Las-1, Lassen County, California Collection date: March 1949
6. Bird bone Bookmark Museum number: 1-102639 Object class: Bird bones Collector: Francis A. Riddell and Harry Starr Riddell Jr. Collection place: CA-Las-1, Lassen County, California Collection date: March 1949
7. Bird bone Bookmark Museum number: 1-102640 Object class: Bird bones Collector: Francis A. Riddell and Harry Starr Riddell Jr. Collection place: CA-Las-1, Lassen County, California Collection date: March 1949
8. Bird bone Bookmark Museum number: 1-102621 Object class: Bird bones Collector: Francis A. Riddell and Harry Starr Riddell Jr. Collection place: CA-Las-1, Lassen County, California Collection date: March 1949
9. Bird bone Bookmark Museum number: 1-102595 Object class: Bird bones Collector: Francis A. Riddell and Harry Starr Riddell Jr. Collection place: CA-Las-1, Lassen County, California Collection date: March 1949
10. Bird bone Bookmark Museum number: 1-102632 Object class: Bird bones Collector: Francis A. Riddell and Harry Starr Riddell Jr. Collection place: CA-Las-1, Lassen County, California Collection date: March 1949