My unrequested report to Auckland Transport (AT) following the completion of a new bridge (part of the AMETI / Auckland Manukau Eastern Transport Initiative) above a colony of native Tarāpunga / Red-billed gulls.
In response AT commissioned this report from BECA. It has a few errors (southern black-backed gull dont nest in the area but white-fronted tern do) but I mostly agree with it. They missed opportunities to point out that more research should be done on light impacts and the possibilities for shielding.