For New Zealand olive growers, the ripening season brings a significant threat: pest birds. While a few birds might seem harmless, large flocks (particularly starlings) can devastate a grove’s profitability in a matter of days.
At Birdzout, we specialize in commercial-grade, non-lethal bird deterrent systems designed for the rugged conditions of New Zealand.
This guide outlines the true cost of bird damage and the smart technologies available to safeguard your harvest.
The True Cost of Bird Damage in Olives
Bird damage isn't just about what they eat; it's about the wastage that often goes unnoticed until the final pressing.
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- Direct Consumption: High-density flocks like starlings can strip trees of their ripest fruit rapidly.
- Mechanical Fruit Drop: Birds landing and foraging often knock more healthy olives to the ground than they actually consume.
- Quality Degradation & Acidity: Pecked or slashed olives begin to oxidize immediately. This increases free fatty acidity (FFA) levels, which can demote your oil from "Extra Virgin" to a lower, less profitable grade.
- Secondary Fungal Infections: Open wounds from bird pecks are entry points for pathogens like olive knot and fungal rots (Colletotrichum), which can spread and spoil entire batches of oil.
Economic Impact: Research indicates that bird damage to specialty crops in New Zealand exceeds $30 million annually. In high-value olive production, the revenue saved by using deterrents is often 3 to 5 times higher than the cost of the equipment.
Problem Species: The Olive Raiders
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- European Starlings: The #1 threat. They move in massive flocks and can strip a block in hours.
- House Sparrows & Greenfinches: Adaptable pests that target seeds and ripening fruit.
- Silvereyes (Waxeyes): Small but persistent, they peck fruit and introduce rot-causing bacteria.
The Birdzout Solution
We recommend a multi-sensory approach.
By targeting a bird's sight and hearing simultaneously, you prevent habituation and ensure long-term protection.
1. Automated Laser Technology
Our lasers use high-contrast green beams that birds perceive as a physical solid object approaching them, triggering an immediate flight response.
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- Auto Laser Ultimate MK2: The gold standard for large groves. It provides 24/7 automated sweeping patterns, is completely silent, and solar-compatible.
- Auto Laser 500: Perfect for smaller groves, or specific blocks where bird pressure is high.
"The Birdzout lasers have been spectacular - they did exactly what they said they were going to do. This year we had our first large harvest after several years of challenges." Ryan
2. Bioacoustic Deterrents
Target specific species with biologically accurate distress calls and predator sounds.
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- Birdzout Bioacoustic 8S Octi: Features 360° sound coverage and randomized playback to prevent birds from getting used to the noise. Controlled easily via a mobile app.
- Birdzout Bioacoustic 4S Flexi: Features duplex speakers with 30m cable and randomized playback to prevent birds from getting used to the noise. Controlled easily via a mobile app.
Our record olive harvest is now over. One reason it is a record is the birdzout device worked superbly. The starlings took fright and stayed away – until I turned the device off. So thanks for a great product. - Ross
View all Birdzout0 Bioacoustic Units
3. Visual & Physical Deterrents
Lower-cost options that provide excellent supplementary support to your main systems.
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- Predator Kite Kites: Mimics the silhouette and movement of a hovering bird of prey. Works well with the Birdzout Bioacoustic Units as the birds associate the sound with the predator kite.
We are harvesting olives at present. Altho a light crop -there is minimal bird damage.Last crops have been decimated by birds. The falcon kite purchased must have contributed to the lack of bird damage" - Jeremy
It keeps flying with minimal wind. Hopefully it would scare the birds who eat my olives. I bought a Osprey Hawk last year (I still use it) and definitely helped me to save most of my olive harvest. - Lakshman
4. Gas Guns
For high-pressure areas far from residential zones, the sudden crack of a gas gun remains a powerful tool.
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- Purivox Caousel Gas Gun: Robust, reliable, and capable of covering up to 10 hectares. Economical and simple to program with a digital timer. Mounted on a tripod each shot is fired into a different direction, which confuses the birds
Get a Professional Recommendation
Every grove is different. Bird species, block size, terrain and bird pressure all have an impact on protecting your olives from pest birds.
Contact our experts today for a free recommendation.
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- Phone: 0800 654 320
- Email: hello@birdzout.com
