The term 'Little Bird' is a collective term for three different species of small birds. The first is the PEWIT, which is a type of plover bird with five letters in its name. The second is the WREN, which is a small brown bird with four letters in its name. The third is the Tit, which is a small passerine bird with three letters in its name. All three of these birds are commonly referred to as Little Birds.