The following is a reprint of 800 Bird Waka Poems preserved in Iwakuni Chouko-kan Library: Its postscript shows that this collection of poems is a transcript of a book which Masamoto Hosokawa ordered Tamehiro Reizei to transcribe in January 1943 (the third year of the Entoku Era). According to A Dictionary of Waka Poems, more than 250 poems in this collection come from A collection of Fuboku Waka Poems. However, not all of them are bird poems: they include poems of various topics such as animals, grass, trees, houses, weapons, cloth, and official duties. Therefore, the title of the collection does not represent its content precisely.