chat
teal
Tern
Tutu, tofu, thou
The answer to the question "A harbour" that is 4 letters long, begins with P, and ends with T is "Port." A port is a location on the coast where ships dock to load and unload cargo or passengers.
Teal
Stork may be the bird you are seeking.
Starling stork stitch bird
Fruit
transport
Toxoplasma
Vermont, perhaps?
mat