Systems and methods include UAVs that serve to assist carrier personnel by reducing the physical demands of the transportation and delivery process. A UAV (100) generally includes a UAV chassis (110) including an upper portion, a plurality of propulsion members (102) configured to provide lift to the UAV chassis (110), and a parcel carrier (200) configured for being selectively coupled to and removed from the UAV chassis (110). UAV support mechanisms are utilized to load and unload parcel carriers to the UAV chassis, and the UAV lands on and takes off from the UAV support mechanism to deliver parcels to a serviceable point. The UAV includes computing entities that interface with different systems and computing entities to send and receive various types of information.