Swamp harrier (Circus approximans)

​Application for Scientific Permit – Available for Public Comment

Public comment on the following application for a Scientific Research (Fauna) Permit is open until 20 February 2018.
 
Applicant: Private individual
Species/Taxon: Swamp Hawk / Marsh Harrier (Circus approximans)
Location: Private land in North West Tasmania
Title of research: Demographics and Distribution of Raptors
 
Aim of project:
To mark (band) and record the movements of the Australasian Swamp Hawk / Harrier (Circus approximans), designated under the ABBBS approved project ‘Distribution and Demographics of Raptors’ #1601, involving investigatory annual migratory transitions to and from other mainland States across Bass Strait by the recovery of individual leg ‘bands’.​
 
Justification: 
According to ABBBS statistics, no long term trans-movement or serious migratory data has been collated to date in respect to the Tasmanian (nesting) Marsh Harrier Circus approximans, initially this project will extend the data in respect to demographics, longevity etc.  It is anticipated that these preliminary investigations will eventually graduate to migratory tracking and aid future recovery of ABBBS banded individual birds, see above. Reserved land is not a target area of this project.
Educational aims are to increase positive awareness of the benefits and presence of Raptors in the Rural Landscape and to develop strategies with the farming fraternity to maximise (ground) nesting success and minimise accidental mortality in the long term, especially during harvest.
Indirect benefits will occur by gathering nest site data such as selected aspect, paddock size, crop types, food preference (natural vermin control), effects of overhead pivot irrigation and pesticide application effecting clutch success will be recorded.
 
Maximum likely numbers of individuals involved:
(if impossible to estimate, indicate effort eg number of traps to be used and how long to be set)
The number of adults that are presented in a 12 month period are approximately 6 individuals, however with the addition of chicks located in nest, the total figure could be  +/- 20 annually (60 individuals for the life of the project).
 
Activities undertaken and methods:
Individual adult Marsh Harriers will be caught opportunistically through interaction with livestock, caught in farm building, industrial ware-houses, poultry enclosures both commercial and private, pigeon lofts and bird aviaries, where they are generally retrieved by hand net, banded, and immediately released or translocated to another secure site. Juvenile nestling Marsh Harriers will be hand caught from the nest, returned immediately to their nest after processing.
 
Fate of animals:
All individuals will be released unharmed in the immediately vicinity of their capture unless deemed problematic, in which case they will be relocated to a suitable site.
 
Likely impact on species involved (including any by-catch):
No impacts or by-catch are envisaged.
​​

Contact

Biodiversity Monitoring Section
Rosemary Gales
134 Macquarie Street
HOBART TAS 7000
Phone: 03 6165 4317
Email: Rosemary.Gales@dpipwe.tas.gov.au

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