counting Honeyeaters etc

["Philip Veerman" <>]

Hi Julienne & others,

 

There is more than one answer to this.

 

Assuming you are asking about the GBS>>>> The answer as defined on the GBS Chart has been the same since the survey started. "At any one time" I always have taken as: imagine you can take a photograph of all the birds of a species in the whole area at the instant at which their numbers were greatest during that week and then be able to count them all. We will not often achieve that, but that is the intent to get close to. You should always have a reasonable expectation though that there are likely to be at least that number present at the one time. Especially for birds passing through, don't add the numbers present at one point to the numbers present five minutes later, unless you are pretty certain that they are all actually still present in the area at the same moment. Also note that during the week can be a different time for each species (ie max Pied Currawongs on 3 p.m. Monday, max House Sparrows at 11.00 am Tuesday, etc and so on for every species).

 

The other point is if you are asking about non GBS, the methods are quite different according to which survey you mean.

 

Philip