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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Recent content by gforcepdx

  1. G

    question about songbirds after dark

    I live in portland oregon and this is my first post here... hello to all. I hear a bird in the early morning hours spring through fall. They tend to be solitary and have a song that comes in a pattern of threes. They seem to sing only at night, just after sunset and again just before sunrise...
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