Peter,
I think, although i have no way of backing this up, that the change of
methodology is probably having an effect on the numbers of Emu and Bustard
recorded.. On a number of trips I have seen numerous Emus and Bustards that
never made an atlas sheet.
Occasionally I would complete an incidental report for one or the other and if
they were within an area I selected to do a 2 hectre of larger survey they
would be included.
Overall I think I've only recorded 25% of both species I've seen on various
trips.
regards Peter
Peter Ewin wrote:
> Hi all
>
> Just a quick comment on the decline of Bustards and Emu in the Atlas. Is
> this really the case, or has the change in methodology had an effect? Both
> these species are large and obvious, and would be easily recorded in a 10
> minute grid square, particularly from a moving vehicle (most of the records
> I have heard of in NSW are from people driving on remote roads). However, I
> would think they are less likely to be recorded in a smaller search. Does
> anyone have any thoughts on this?
>
> I also thought it strange that in the 4 weeks I spent in the NT last winter,
> no bustards were seen. A pair were seen in Witjirra NP just south of the
> border on the western edge of the Simpson Desert, and quite a few were on
> the mitchell grass around Boulia but none in between. We may have been in
> the wrong areas, but I would have thought that you should see at least one
> on a roadside somehwere.
>
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