"But these guys are cunning," he said. "They know what they're looking for. Fat lambs, and in these small-holding yards, where they don't have to run around all over the place to catch them."
Latest thefts have taken place south of the river around Twyford, and north of the river around Omahu, with one small property hit twice since Christmas.
After the latest incident at the weekend, the victim said in a text message: "Sheep owners beware. The thieves are out at night again. Please report stock thefts. I didn't for the 1st one so they came and stole 4 more."
Fearing thieves might return again, she said yesterday she didn't want the property publicly identified, but it was a small block of less than three hectares, with fewer than 20 sheep in a paddock close to a house.
One lamb was stolen at the end of last month and the more recent theft happened at the weekend, notably without the dogs on the property being disturbed. Up to five lambs had been taken in another incident, she had been told.
Four people are also appearing in Napier District Court next week charged with stealing a lamb.