A Central Hawke's Bay farmer was prosecuted by the Department of Conservation after cutting boundary fences and allowing his stock to graze on reserve land.
The man was given diversion but had to make a "sizeable donation" to a conservation group in Hawke's Bay, DoC Conservation Services manager Dave Carlton, said.
Charges were laid after it was determined the farmer deliberately cut fences and allowed 61 cows to graze on Hiranui Scenic Reserve in May.
While DoC sympathised with those struggling to feed stock in drought conditions, they were still required to abide by the rules.
"The offence is worsened when the land is protected, in this case a scenic reserve," Mr Carlton said.