Yellow-tufted HE status.

["Philip Veerman" <>]

Hi Marnix,

 

I was referring to the ACT and Queanbeyan, not the whole of the COG area. I wonder where you "read that the majority of GBS records nearly all come from rural or semi-rural areas such as Sutton Rd or Queanbeyan and not actually within Canberra." Perhaps a recent ABR that I don't have nearby. Below is the list of GBS records from the first 21 years (with actual observations deleted, as it makes the table too big). I don't think this agrees with what you believe you read. I apologise for a little error in my previous message. In writing "It has been recorded on most years in the GBS", "most" should be "15" (out of the 21). I don't know why I was so vague, it is in Appendix 1.

 

Dare I say I think Peter Milburn's comment about "frequent, uncommon and occasional" is about an entirely different thing. He writes about things related to how often a person observes a species. That is about recording rate, which has any number of biases and constraints. It is quite different from species abundance. Not that recording rate is not useful for its own purposes but I think it is not at all close to the phenomenon of whether a species is "common" or "rare", which is about population density. (There is a reason why I called Figure 33 of the GBS Report, that shows the link between the two as "Probably the most important result of the GBS". We only observe and record the minutest fraction of the bird fauna present in the whole area. 

 

GBS table......

 

SUBURB	Observer	Observation Year	GBS Site Number
O'CONNOR	E. METCALF	1	4
O'CONNOR	H. NIX	1	5
AINSLIE	IM. TAYLOR	1	18
HUGHES	D. JOHNSON	1	23
CHAPMAN	J & A. HOLLAND	1	32
FLYNN	P. DAVIDSON	1	44
O'CONNOR	H. NIX	2	5
CHAPMAN	J & A. HOLLAND	2	32
YARRALUMLA	R & C. CANNON	2	60
CITY	R. PURDIE	2	64
KAMBAH	K. GOODRIDGE	4	103
AINSLIE	JB. FITZGERALD	5	14
O'CONNOR	H. NIX	6	5
HOLT	D. COWLEY	6	162
HOLT	G & R. ELLIOTT	7	148
MACGREGOR	R. MORPHETT	7	180
CHAPMAN	J & A. HOLLAND	8	32
HOLT	C. DAVEY	8	46
WESTON	BJ. LEPSCHI	8	124
CHAPMAN	J & A. HOLLAND	9	32
CURTIN	S. BERRY	9	193
CHAPMAN	J & A. HOLLAND	11	32
QUEANBEYAN	G. SCHOEFL	14	246
QUEANBEYAN	G. SCHOEFL	15	246
KAMBAH	PA. VEERMAN	16	152
QUEANBEYAN	G. SCHOEFL	16	246
DEAKIN	D. ROSALKY	17	258
QUEANBEYAN	B. RUSK	17	267
QUEANBEYAN	G. SCHOEFL	20	246
CHAPMAN	J & A. HOLLAND	21	32
KAMBAH	D & N. McDONALD	21	213
BELCONNEN	A. LEAVESLEY	21	292