The experienced author team of Drickamer, Vessey, and Meikle has created a unique balance in the new edition of Animal Behavior by clearly describing the necessary elements of mechanisms, ecology, and evolution that support a comprehensive study of behavior. This one-semester text is designed for your upper- level course and features chapter coverage that has been completely reorganized to promote a more logical framework for study.
This is a very good introduction to the field; it gives a wide variety of examples of many different behaviors, and while it doesn't go into any of them in any depth, that is to be expected in an introductory treatment. It is not exceptionally fascinating reading, but it is not exceptionally dry, either, and it is far from impenetrable even to a non-scientist. Generally well-written, there are only a very few typos or grammatical mistakes that have slipped through the editing process.
This is a decent undergrad text for Animal Behavior. Its primary strength is the chapter on methods. I thought it was very well done, and it is usually a topic that is skipped altogether in other texts I have read on this subject. This is especially useful for classes in which students are required to actually conduct observations of animals---having a chapter discussing focal vs. continuous sampling is a real asset for that kind of project.