Grey Ternlet Published December 8, 2011 | By Jack Shick Grey Ternlet (Procelsterna cerulea) Wingspan 520mm body weight of 70g. Present here all year round, Lord Howe is the only breeding ground in Australia. Local fisherman use this bird to locate fish, common name used by locals is Blue Billy. grey-turnlet grey-turnlet grey-turnlet grey-turnlet grey-turnlet grey-turnlet