"In the late part of last year when they started nesting I worked it out, counting both sides, over the year well over 800 birds would have perished. It is just sad."
Many of the birds killed were blackbirds and sparrows but he had also come across kingfishers, tuis, waxeyes, quails and shining cuckoos, he said. "It shouldn't be happening. In today's society they have too much of an uphill struggle anyway."
Forest and Bird central North Island field officer Al Fleming praised Mr Bowhill for taking action and letting the organisation know rather than ignoring the problem.
"Bird strikes are a real issue. It's often houses and buildings on flyways," he said. "I think this fence may have been just not thought through."
Tauranga City Council transportation manager Martin Parkes said the fence, which was installed about 18 months ago, was a sound barrier to keep noise from the State Highway out of the subdivision and perspex would have been used because of an urban design or light issue. He said the cost was about $5000 and estimated the cost of removal $1500. There were about 20 panels.
"I'm glad we can do our bit to put a stop to this. It's quite upsetting to know that we have caused this issue in the first place. Certainly lessons have been learnt for future design."