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

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  1. Mike Crawley

    UK Beginner - Need help excel maybe!

    absolutely, I’m sure the OP will welcome anything that allows the spreadsheet to “add up”
  2. Mike Crawley

    UK Beginner - Need help excel maybe!

    Just write your own ? Species names down the left hand side and day of the month across the top (never more than 31 cells wide). Insert the bird names as the occur. Put a 1 in the date cell. At the end of the date row add Total, and sum up the total number of days that month you have heard the...
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