ColinD
Well-known member
Can anybody give me the official definition of a bird-day?
I not talking about a day out birding, what I mean is the sort of thing you see in bird reports, e.g there were 10 Common Sandpiper bird-days.
So, if I had the following set of records, how many bird-days are there:
15/05 2 Common Sandpipers
16/05 3 Common Sandpipers
18/05 1 Common Sandpiper
20/05 1 Common Sandpiper
21/05 2 Common Sandpipers
is it 5 bird-days, 9 bird-days or something else entirely??
Thanks a lot
Colin
I not talking about a day out birding, what I mean is the sort of thing you see in bird reports, e.g there were 10 Common Sandpiper bird-days.
So, if I had the following set of records, how many bird-days are there:
15/05 2 Common Sandpipers
16/05 3 Common Sandpipers
18/05 1 Common Sandpiper
20/05 1 Common Sandpiper
21/05 2 Common Sandpipers
is it 5 bird-days, 9 bird-days or something else entirely??
Thanks a lot
Colin