The term 'Small Swallow' is a collective name for three species of birds: the SIP, MARTIN, and HOUSEMARTIN. The SIP is a small passerine bird in the swallow family, while the MARTIN and HOUSEMARTIN are both members of the Hirundinidae family, which includes all swallows and martins. All three species are migratory birds, typically found in Europe, Asia, and Africa. They are known for their aerial acrobatics and swift flight.