Better than expected - ATN BlazeHunter Pro 2.5-20x35mm Thermal Monocular

As a wildlife, mostly bird, photographer, I purchased the ATN BlazeHunter Pro to assist in locating birds camouflaged in trees, vines, and/or marsh grasses. I wanted a thermal monocular that was relatively small but with enough sensitivity and definition to detect small birds at a distance of approximately 50 yards and larger birds at 100+ yards. While binoculars certainly help, in some situations the birds blend in so well that it is still easy to overlook them, hence the thermal unit. While I received the BlazeHunter last week, it has already proven useful in spotting marsh birds. My other main bird target is owls which are mainly active at night, which for a photographer mostly translates to dusk and dawn, but I expect the thermal unit will be useful in locating owls perched in vine overgrowth, and/or pine trees. I chose the BlazeHunter Pro 635 model for the following specifications: NETD <20mK, 35mm objective lens diameter, 640X512 pixel sensor resolution, the 1440X1080 pixel OLED display, and the field replaceable battery. All this in a relatively small package. Oh, the three-year warranty and picture taking capability were also pluses. Note that while the laser rangefinder would likely be a good option for hunters, I do not have a need for it.