The subject of the thesis that summarizes the main idea and the purpose of the research paper is too limited and reduced in extent. The reason is that the golden finch by itself has particular and restricted feeding habits. In fact, its diet is based on seeds and certain plants, so in order to develop a research paper, it is suitable to broaden the topic, such as the feeding habits of birds in a particular area.
I believe it's adequate. "The Feeding Habits of the Golden Finch." It's a very descriptive title, and gives you just enough information to know what you're reading/reviewing without overdoing it too much.
