Abstract
A small bird and three Red Swamp Crawfishes Procambarus clarkii were found in stomach of a female Large-mouth Bass Micropterus salmoides (total length: 504mm, weight: 2.4kg), that was caught by net in Lake Uchinuma on 1st May 2009. The bird was identified as Reed Bunting Emberiza schoeniclus based on size and coloring of some feathers and length of upper mandible and tarsus.