Brief description
The Norfolk Island Green Parrot (Cyanoramphus cookii) Wild Breeding Project (2013-2014) dataset contains records of Green Parrot breeding success and survival rates per nesting site, including number of eggs laid, number of chicks hatched and number of chicks fledged. Records of sex composition are recorded as well as records of parental attendance and any nesting disturbance. For information on study site coordinates (restricted data) for this species, please contact the dataset author.Lineage
Data Creation
Nest inspection:
At arrival at a nest site, a mirror and torch through the entrance hollow is used to see if it is active. Information on nest status is recorded, including any presence of feathers, egg shells, cobwebs, etc. If a site is active with a female on the nest: the observer moves to a spot at least 10m away where the nest hollow can be watched inspection of the nest does not occur until the female comes off the nest to feed its important not to disturb the female while she is in her nest or she may abandon it the times when the male returns to call her off is recorded once the female has left the nest it is inspected. If the nest contains eggs: the eggs are counted and checked for fertility if it is a newly discovered active nest, where the female is in the process of laying, the eggs are marked to tell the order in which they are laid. If the nest contains chicks: hands are washed with antibacterial hand wash before touching any chicks, then chicks are taken out one at a time so they spend as little time as possible out of the nest, and time spent handling chicks is minimized chicks are placed into a bag for weighing the following measurements are taken (according to standard methodology for bird measurements): beak length, beak width, beak depth, tarsus, wing, tail once all the chicks are measured, the nest is checked for any signs of rat access or drainage issues and then chicks are returned.
Survey design:
At the end of 2013, 40 predator proof nest sites were set up in trees containing hollows that could be easily modified to create safe nesting sites for Green Parrots. In 2014 an additional 38 nest sites were constructed, totalling 78 nest sites. These 78 sites they are generally located in groups of three, so that parrots have the opportunity to double clutch as this species sometimes does. All predator proofed nest sites are inspected on a monthly basis for nesting activity. Any active nests are assessed twice a week to collect data on clutch size and fledgling success.
Nest site maintenance and bait station set up:
Nests are checked upon each visit to ensure they are rat proof, and any overhanging branches that could provide rat access are removed. Notes are
taken from any repairs required. At each active site 3 bait stations are set up and filled with rat bait; bait take is recorded on subsequent inspections. Gloves are used for the handling of bait.
Banding:
All chicks are banded between 2540 days when they show fully developed red feathers on their heads. Males are banded on their right leg, females on their
left leg. Banding is conducted under the Australian Bird and Bat Banding Authority: Norfolk Island Green Parrot Monitoring Program (8886).
Notes
CreditWe at TERN acknowledge the Traditional Owners and Custodians throughout Australia, New Zealand and all nations. We honour their profound connections to land, water, biodiversity and culture and pay our respects to their Elders past, present and emerging.
Luis Ortiz-Cathedral, Researcher, Massey University
Norfolk Island National Park and Norfolk Island Botanic Garden protects over 655 hectares of the remote Territory of Norfolk Island, set in the south-west Pacific Ocean. The Norfolk Island Green Parrot (Cyanoramphus cookii) is listed as Endangered under the EPBC Act. In 2013 a monitoring program commenced to investigate breeding biology to aid in the conservation of the Norfolk Island Green Parrot.
Created: 2015-01-23
Issued: 2022-01-31
Modified: 2024-05-12
Data time period: 2013-07-09 to 2014-07-17
text: Monitoring occurs across all habitats within Norfolk Island National Park. There are 78 study locations from this study. For information about study site coordinates (restricted data) for this species, please contact the dataset author.
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Point-of-truth metadata URL- URI : geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/2f645f23-29db-432c-a218-e5ce970835c7
- global : 2f645f23-29db-432c-a218-e5ce970835c7
