Every fortnight since 9 July 2008 (with a few exceptions), I have run this 10.1 km route through the suburbs of southwestern Ōtautahi-Christchurch. That's between Centennial Park (Pioneer Stadium) in the southeast and the Wigram Retention Basin (site of the annual A&P; show) in the northwest. From the start I counted all native forest birds and butterflies and wild mammals, and quickly ramped up to all birds and an assortment of other taxa. In celebration of the 18th birthday of the survey route, here's an animation that shows all of the korimako (NZ bellbirds) I've seen and heard (and mapped*) on the first 18 years of my runs. Korimako were sparse in the early years and I now observe them on most runs. They remain largely restricted to the areas of native tree plantings and the few residential gardens with mature bird-nectar trees in flower (especially kōwhai, banksia, and eucalyptus). * I started out doing this on pen-and-paper before transitioning to my iPhone. There are a few early observations (about 10) that are not on the map here (yet). I started mapping the positions of individual birds in 2009. The dots are coloured by year, from blue in 2009 to red in 2026.