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An influx of native tūī with lead poisoning in the capital may be down to the water sitting in gutters. A Massey University study on kākā found that the lead most likely came from water that's sitting in the gutters which the kākā are drinking. "The tūī, we haven't been able to do the isotope testing yet but based on the behaviour in cities, it's more likely that they're getting it from that same source rather than the other sources that we see wildlife getting lead toxicity from."
