Musical Native

What does endemic mean? According to the Dept of Conservation tuis are endemic to NZ.   Perhaps, due to a concerted effort to replant the NWS grounds with an abundance of native NZ plants, trees and shrubs we are lucky enough to spot tui on a regular basis, flying, diving, whistling and singing.

What do tui need to thrive?  Why are tui always around our school?  How can we encourage more tui to hang out at NWS ?