Which term refers to an inexperienced person or a young bird?

The term that refers to an inexperienced person or a young bird is "fledgling." In ornithology, a fledgling is a young bird that has just acquired its feathers and is learning to fly, making it a symbol of inexperience. This term is often used metaphorically in various contexts to describe someone who is new to a particular field or activity, highlighting their lack of experience. Thus, it aptly captures both the literal and figurative meanings associated with being inexperienced. The other terms do not relate to inexperience or young birds: "forsake" means to abandon, "filibuster" refers to a political tactic, and "fickle" describes someone who changes frequently, especially in loyalty or interest.