Hello, we supply Spypoint Trail Cameras for raptor research at the highest level (big birds of prey!) and I have been informed by the raptor biologists that it is crucially important that the infrared emitted from cameras used is of the covert wavelength. I wont bore you with the frequency etc
So based on this raptors are apparently the most suceptible to infrared being detected, and therefore we can confirm that Spypoint do not have this issue as they use IR LED's of the invisible wavelength.
However, and this is where the confusion lies often.
Some manufacturers use standard IR led's and simply put a lens filter over the top of them, to provide a covert infrared illumination, however I agree some of these "covert" cameras still have a faint glow, so they call them "Low Glow"
This type with the added filter would intrinsically reduce the effective range, where as the actual covert LED's have full strength potential. (see in brackets for wording explanation)
(Spypoint cameras automatically adjust the amount of IR needed to perfectly expose images, so no point firing 100% IR if the deer is 5ft away as it will appear over exposed "white out")
There is a big difference in costing when this technology is employed and I guess it is a way of keeping costs down.
Not sure which your camera uses, but worth considering.
Also we had a customer with another "brand" of trail camera, and it was scaring off his badgers at the sett when it triggered at night.
Upon further inspection, it was actually the camera IR filter switching into place that clicked causing the animal to hot foot it.
Worth testing as the noise of this filter switch is actually very apparent on older Spypoint cameras too, although the new ones are silent.
Regards
Paul