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A Commentary on
Rainbow Lorikeets
a Fact Sheet published by the
Department of Conservation, February 1999
Abstract: A new compilation of evidence
from a number of sources shows that the claims made by the Department of Conservation in
various publications against the Rainbow Lorikeet are either exaggerated or incorrect. The
evidence suggests that the Rainbow Lorikeet poses no threat to birds or humans by disease,
that it is anatomically not adapted to live and breed in the NZ bush, that it poses no
threat to native birds by competition for food or nest sites, that the bird poses no
threat to the horticultural industry, and that by publishing false information on this
matter the Department of Conservation has misinformed and mislead the Prime Minister, the
Minister of Conservation and the public of New Zealand. The writer asks the Minister of
Conservation to direct his Department to withdraw all misleading information and to
correct the misinformation already broadcast about the Rainbow Lorikeet. He also suggests
that the totally inappropriate and ridiculous classification of the Rainbow Lorikeet as an
unwanted organism under the Biosecurity Act be withdrawn for the reason that the
"evidence" which has been presented to the Chief Technical Officer is incorrect,
and further asks that the Minister reconsider any moves to declare the bird unprotected
under the Wildlife Act pending an independent review of the evidence presented in this
commentary. The writer also suggests that a contemplated capture program of the Rainbow
Lorikeet would be an unnecessary waste of taxpayers money and departmental
resources, and that the time money and effort earmarked for this possibly unsuccessful
program of destruction will be more wisely spent on constructive efforts at preserving
predator free island environments for native birds.
Contents
1 Origins of the claims
2 Additional Claims
3 Smith's compelling
scientific evidence
4 Fact sheet influence
5 Misleading information
6 Fact References
7 List of Included Documents
8 Additional references
9 Horticultural
and ecological summaries
10 Video Clips
11 Newspapers
12 The Author
This DOC Fact Sheet written as public information claims that the Rainbow Lorikeet is a
threat to NZ horticulture, that it is a threat to NZ native birds by competition for food
and nest resources, and that it is a threat to birds and humans through disease.
Origins of the claims
The majority of information issued by DOC about the Rainbow Lorikeets can be traced to
a report written about 1998 by Auckland DOC scientist Terry Greene entitled
"Potential Impact of Rainbow Lorikeets Released in Suburban North Shore,
Auckland" (Greene 1998). The report may have been written under the direction of the
current Auckland Conservancy Threatened Species officer, Shaarina Boyd. Ms Boyd has
studied Tuis, while Greene is known for his research on the Kakariki - neither is known
for any published research on Rainbow Lorikeet. Greenes report may have been
inspired by a paper published in Eclectus of October 1997 entitled "Rainbow
Lorikeets: An Avian Weed in the West" (Lamont 1997). Lamont appears to exhibits a
personal antipathy towards Rainbow Lorikeets evident in the papers title (Lamont
RBLWA). In the paper Lamont made a number of claims about the potential dangers of Rainbow
Lorikeets in Perth, Western Australia, particularly the adverse effect by interference
competition on a number of other bird species, but without showing any substantive
evidence, and without making reference to easily available statistics. Greene in his paper
added to these claims a selection of references from other Australian research and
extended Lamonts free interpretation of interference competition in birds to his own
predictions and opinions as to the likely impact of Lorikeets in New Zealand, again
apparently without showing substantive evidence.
Additional claims
Additional claims presumably based loosely on Greenes earlier paper were
released to the media by the Department of Conservation in February 1999 entitled
Rainbow Lorikeet Technical Information Media Package", without citing any
author or references sources of the "technical information" provided. Many of
the claims in this document distort claims made in Greenes earlier paper, and
introduce further erroneous data.
Smiths
compelling scientific evidence
The "Technical Information Media Package" was issued to the media with letter
from the Minister of Conservation, Dr Nick Smith, entitled "Smith says Aussie Birds
must Go". In his letter Dr Smith referred to "the compelling scientific
evidence" presented to him, and cited some interesting enhancements on this evidence.
It is not known whether Dr Smith checked the accuracy of the data provided to him by the
Department of Conservation.
Fact sheet influence
The Department of Conservation also published in February the Rainbow Lorikeet Fact
Sheet which is the main subject of this commentary. The Fact Sheet summarised and modified
a number of previous claims about the bird derived from Greenes paper but again
without citing any author or reference sources. As the Department of Conservation is
generally respected for its work with endangered species it is these "facts"
which have been responsible for influencing the opinion of a trusting public against the
birds. This has triggered severe condemnation of the Rainbow Lorikeet by all concerned
with the future of native birds, particularly by a minority of Forest and Bird members who
have escalated the level of controversy into a witch-hunt entirely on the information
supplied by the Department. The same information promoted by DOC has been used as a basis
for an article published in Forest and Bird magazine (The Curse of the Lorikeet, Forest
and Bird, No 292, May 1999). The article, by respected conservation journalist Gordon Ell,
has repeated the DOC claims (particularly those on interspecific competition) in the
mistaken belief they had the backing of scientific evidence. The same errors have also
been repeated publicly (NSTA, July 22 1999) with no attempt at independent verification of
the DOC "facts".
Misleading information
This commentary will introduce evidence to show that the claims made in the Fact Sheet
against the Rainbow Lorikeet are not "scientifically compelling" as the Minister
believed but are either exaggerated or incorrect, that the Rainbow Lorikeet poses no
threat to native birds by disease or competition, that it poses no threat to the
horticultural industry, and that by publishing false information on this matter the
Department of Conservation has misinformed and mislead the public.
References
The following text examines the incorrect claims in the Fact Sheet, citing reference
material from the list of published works listed at the end of this commentary, and from
the accompanying research reports. These reports (coded RBLNT, RBLQL, RBLWA, RBLSA, RBLTA)
summarise information from correspondence undertaken by the author with Australian
government officers and authorities in the field of horticulture, wildlife conservation,
and pest control, and with Australian academic authorities in the field of ornithology. In
all cases these summaries include references to a published sources or included copy
documents, and the references are listed at the end of each report. Due to the shortage of
time much of the data is in the form of file notes taken during telephone conversations
with Australian authorities. In the case of these oral reports full contact details
including telephone and fax numbers are included for verification of data where thought
necessary.
In the body of the commentary, where no reference to published works or summaries is
given the observations, opinions and conclusions are those of the author. These have been
limited in order to reduce any accusation that his conclusions show bias or a disregard
for scientific accuracy.
This commentary and the accompanying research summaries have been viewed by Dr Brian
Gill, Ornithologist at the Auckland Museum, who has assisted the author with a number of
helpful comments.
List of
Documents included with this commentary
Department of Conservation documents
Anon
, The Rainbow Lorikeet Fact Sheet, DOC Feb 1999a
Greene T, Potential Impact of Rainbow Lorikeets
Released in Suburban North Shore, Auckland, DOC internal report 1998
Anon
, Rainbow Lorikeet Technical Information Media Package, DOC, 1999b
Smith, N, Smith says Aussie Birds must Go, letter
18 Feb 1999a
Smith
, N, Aussie Lorikeets Join Unwanted List,
letter 15 July 1999b
Shipley, J, Reply to children regarding Rainbow
Lorikeets, Letter 6 April 1999
Stanislawek
, W, Disease Investigation of Rainbow
Lorikeets, MAF letter 25 Feb 1999
Houghton
, G, Subject: Prosecution Wildlife
Act, DOC internal letter 24 Jan 1999
Anon
, Extract from lorerad.doc, Auckland Conservancy, April? 1999c
Additional references
Arnold,
K, Honeyeaters, Email 12 June 1999
Caterall, C, Urban Nectar Eaters, Email 11
June 1999
Menkhorst, P, Urban Nectar Eaters, Email 15
June 1999
Geering, D, Urban Nectar Eaters, Email 11 June
1999
Oliver, D, Urban Nectar Eaters, Email 11 June
1999
Reid, J, Urban Nectar Eaters, Email 11 June 1999
de la Motte, K , Curator, Jurong Bird Park,
Singapore, Faxed enquiry to, 9 July 1999a
de la Motte, K , Curator, Jurong Bird Park,
Singapore, Email reply, 9 July 1999b
Horticultural and ecological summaries
RBLNT, Rainbow Lorikeets in Northern Territory, ed R
Gilfillan, July 1999
RBLQL, Rainbow Lorikeets in Queensland, ed R
Gilfillan, July 1999
RBLSA, Rainbow Lorikeets in South Australia,
ed R Gilfillan, July 1999
RBLVI, Rainbow Lorikeets in Victoria, ed R
Gilfillan, July 1999
RBLWA, Rainbow Lorikeets in West Australia, ed R
Gilfillan, July 1999
RBLTA, Rainbow Lorikeets in Tasmania, ed R
Gilfillan, July 1999
Newspapers
NSTA refers to the North Shore Times Advertiser
Herald refers to the New Zealand Herald
Video clips
a) A selection of incidents recorded in Birkenhead at a garden feeder demonstrating the
degree of interference competition between the following:
Conspecific interference competition between Rainbow Lorikeets
Conspecific interference competition between Tuis
Interspecific interference competition between Tuis and other species
Interspecific interference competition between Rainbow Lorikeets and other species
b) Flycatching behaviour of the Bellbird on Enderby Island, Auckland Island Group
The author
Rex Gilfillan was born at Takapuna in 1939 and educated at Takapuna Grammar and
Auckland University before working in Europe and North America. In 1972 he founded his own
business designing and manufacturing electronic equipment which now employs 25 staff in
New Zealand, with a further 25 staff in a joint venture company in China. His business has
sponsored the Kaka at the Auckland Zoo for many years. His home in Birkenhead is set in
1.3 acres of native bush.
He has had a lifetime interests in conservation matters, and a passion for all birds,
and counts among his more memorable experiences a six months tour of national parks in
America observing wildlife, several birdwatching tours of Australia, a trip to the Sub
Antarctic Islands Auckland and Campbell Islands, and a trip to observe the rare Rarotongan
fly catcher.
He has previously assisted the Department Of Conservation by eradicating the Norway rat
from Saddle Island in the Hauraki Gulf at his own expense, and planted over 400 trees on
Tiri Tiri Island.
He is a member of the following conservation organisations:
The Royal Australasian Ornithologists Union
The Royal Society of New Zealand (life member)
The Auckland Institute and Museum (life member)
World Wildlife Fund (life member)
Greenpeace
The Royal NZ Forest and Bird Society (life member)
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