And earlier this year several cows were killed after they made a break for freedom from an abattoir in Mt Wellington.
Traffic is heavy across Auckland's motorways, as rain hits the city after a week of sunny skies.
Public transport isn't much better. Auckland Transport said trains were delayed and cancelled across Auckland because of an overhead line fault.
No rail buses had been put on because all buses are used during peak travel times.
There have been at least two crashes at major intersections this evening.
As of 6.30pm a crash was blocking lanes at the intersection of Manukau Station Rd and Lambie Drive, according to the NZTA.
And at 4.45pm a car smashed into a building at the corner of Ormiston Rd and Te Irirangi Drive in East Tamaki. Police and other emergency services were at the scene, a spokesman said. Two people had sustained moderate injuries.
Auckland Transport and the NZ Transport Agency both warned drivers to take care on the roads.
"Switch on your headlights so other road users can see you and remember to drive to the conditions," AT tweeted.