If a Bird Gard system isn’t performing the way you expect, most causes fall into a short list — and most are fixable in the field without sending anything back. Work through the checks below first. If you’re still stuck, call us at 541.549.0205, Monday through Friday, 7:30 AM to 4:00 PM Pacific.
Start here: the four things to check
1. Power
Power is the most common cause of a unit that has gone quiet. Sonic Hawk systems run on a 12V Group 27 deep-cycle battery, charged either by solar panel or by AC adapter.
- Check the battery voltage under load, not at rest. A battery that reads fine disconnected can still sag below operating voltage once the amplifier draws on it.
- Confirm the solar panel is angled and oriented for your latitude and season, and that nothing shades it during peak sun — including foliage that has grown in since installation.
- Inspect the battery cables and terminals for corrosion, and confirm the connections are tight.
- Deep-cycle batteries are consumables. If yours has been in service several seasons, it may simply be at end of life.
2. Sound output and volume
If the unit powers on but coverage seems short, check volume and speakers before anything else. Overlapping coverage at full volume is what makes each unit effective — turning systems down to be neighborly is one of the most common reasons a deployment underperforms. Inspect speaker connections and confirm every speaker in the array is sounding.
3. Sound profile and programming
Bioacoustics is species-specific. A profile loaded for starlings will do comparatively little against crows. If your bird pressure has shifted to a different species — which often happens as the season moves — the profile needs to change with it.
Sonic Hawk 500 and Sonic Hawk 100 systems load sounds by USB, and new content is free. Email or call us with the species you’re now seeing and we’ll build the profile.
4. Placement and coverage
A large share of “it isn’t working” calls turn out to be coverage problems rather than equipment problems. Birds feed inward from the perimeter, so effective range needs to extend past the edge of the crop. Hills, buildings and tree lines block sound. Birds staging in adjacent foliage or on power lines need to be inside the covered area, not beside it.
See best practices for agricultural applications for placement and coverage density guidance, or ask us for a free satellite-imagery coverage map of your property.
If birds have started ignoring the system
This is habituation, it is real, and we’d rather explain it than pretend it doesn’t happen. University of Minnesota Extension rates bird distress calls as moderately to highly effective but reports that birds typically acclimate within two to six weeks when the sound becomes predictable (Klodd, Loegering & Clark, 2021, University of Minnesota Extension).
Habituation is a failure mode of predictability, not of bioacoustics itself. Practical steps:
- Relocate and re-angle speakers. In the Carneros vineyard trial that produced the strongest acoustic result in the published literature, units were relocated weekly (Berge et al., 2007, American Journal of Enology and Viticulture 58(1): 135–143).
- Rotate sound profiles. Alternate distress, alarm and predator calls rather than running one set all season.
- Vary time-off intervals. Silence is part of the signal; constant playback is what birds tune out.
- Layer with visual deterrents. Keep any reflective tape, decoys or lasers you already run — sound plus visual outperforms sound alone.
Sonic Hawk systems running IntelliGard OS automate randomized playback and time-off intervals so the pattern isn’t left to the operator to remember. If you’re running older fixed-playback equipment, an IntelliGard OS USB upgrade is available for Super Pro USB and Super Pro AMP USB units.
Manuals and guides
- Sonic Hawk 500 user manual (PDF)
- Sonic Hawk 100 manual, troubleshooting guide and downloads
- Frequently asked questions
- 5-year parts and labor warranty
Warranty and repairs
Bird Gard products are backed by a 5-year parts and labor warranty. Units are built in Sisters, Oregon, and repairs are handled on site at our Central Oregon headquarters. If a unit needs to come in, call first — a large share of issues are resolved over the phone, and we’d rather keep your crop protected than have a system sitting in transit.
Still need help?
Call 541.549.0205 (Mon–Fri, 7:30 AM–4:00 PM Pacific) or ask a bird control advisor. Tell us the crop, the acreage, the species you’re seeing and how your units are currently placed — that’s usually enough for us to spot the problem.