ACAP Latest News

Read about recent developments and findings in procellariiform science and conservation relevant to the Agreement on the Conservation of Albatrosses and Petrels in ACAP Latest News.

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Fluttering Shearwater translocation in New Zealand is a learning experience for Kauai’s Newell’s Shearwaters and Ramsay’s Manx Shearwaters

New Zealand is a world leader in developing techniques for and undertaking the translocation of burrowing seabird chicks to create new or restore extinct colonies.  Translocation attempts in New Zealand have included such procellariiform species as the ACAP-listed Black Petrel Procellaria parkinsoni, Grey-faced Petrel Pterodroma macroptera gouldi, Taiko or Magenta Petrel P. magenta, Chatham Petrel P. axillaris, Pycroft’s Petrel P. pycroftiHutton’s Shearwater Puffinus huttoni, Fluttering Shearwater P. gavia, Common Diving Petrel Pelecanoides urinatrix and Fairy Prion Pachyptila turtur. Click here and here for earlier ACAP Latest News items on some of these translocation efforts.

New Zealand (and Australian) expertise has led to translocation efforts being attempted in other parts of the World.  An example is the Critically Endangered Bermuda Petrel or Cahow Pterodroma cahow (click here).

A project to reintroduce Fluttering Shearwaters to 25-ha Matiu/Somes Island Scientific and Historic Reserve in Wellington Harbour has led to further international collaborations.  In 2006 and again in 2010 solar-powered sound systems were installed to attract adult birds to artificial burrows with some success: by 2013 a few eggs had been laid but none hatched.

Matiu/Somes Island Scientific and Historic Reserve in Wellington Harbour

Photograph by John Cooper

An adult Fluttering Shearwater in an artifical burrow on Matiu/Somes Island

Photograph by Shane Cotter

Following on from this attraction effort 80 Fluttering Shearwater chicks have been brought each year over the period 2012-2014 to Matiu/Somes from Long Island in Queen Charlotte Sound, placed in artificial burrows and fed by hand on “sardine smoothies” as they completed their growth.  Nearly all of these chicks successfully fledged each year (click here for more information on this translocation exercise).  The operation has been led by the Matiu/Somes Island Charitable Trust with support from the New Zealand Department of Conservation.

The lids of the 93 artificial burrows are sequentially numbered; half the colony can be seen, photograph by Mike Rumble

A Fluttering Shearwater chick in its artificial burrow, photograph by David Cornick  

A chick about to be collected from its burrow for feeding.  The internal blockade stops the chicks exiting the burrow too early, photograph by David Cornick 

Inside the feeding shed with two chicks being fed sardine smoothies

Photograph by Alison Ballance 

Detailed records are kept for each translocated chick

Photograph by David Cornick

In 2012 the Royal Society for the Protection of Birds (RSPB) Warden from Ramsey Island in Wales visited Matiu/Somes to see the translocation site and particular the nest boxes utilized.  Similar boxes have now been installed in a Manx Shearwaters P. puffinus study colony on Ramsay as part of a research effort (click here).

This year the Kaua'i Endangered Seabird Recovery Project and Pacific Rim Conservation from the USA’s Hawaiian Islands were invited to assist with the project and to observe the techniques. This gained knowledge will help guide work with Endangered Newell's Shearwaters P. newelli on Kauai where it is intended to translocate chicks into the to-be-fenced area at Nihoku (click here) in the next few years.

A further international connection was when a field trip to the colony as part of the 5th International Albatross and Petrel Conference that was held in Wellington in August 2012.  A number of international delegates took this opportunity including from Japan and the USA.

Click here to read of a current New Zealand effort translocating Cook’s Petrels Pterodroma cookii.

With thanks to Alison Balance, Shane Cotter, Helen Gummer, David Cornick, Andre Raine and Mike Rumble for information and photographs.

Selected Literature:

Anden Consulting 2013.  Draft Environmental Assessment Nihoku Ecosystem Restoration Project Kīlauea Point National Wildlife Refuge Kaua‘i, Hawai‘i September 2013.  Honolulu: Anden Consulting.  169 pp.

Bell, M., Bell, B.D. & Bell, E.A. 2005.  Translocation of Fluttering Shearwater (Puffinus gavia) chicks to create a new colony.  Notornis 52: 11-15.

Gaze, P. & Cash, B. 2008.  A history of wildlife translocations in the Marlborough Sounds.  DOC Occasional Publication No. 72.  Wellington: Department of Conservation.  23 pp.

Gummer, H. & Adams, L. 2010.  Translocation techniques for fluttering shearwaters (Puffinus gavia): establishing a colony on Mana Island, New Zealand.  Wellington: Department of Conservation.  52 pp.

Miskelly, C.M. & Taylor, G.A. 2004.  Establishment of a colony of Common Diving Petrels (Pelecanoides urinatrix) by chick transfers and acoustic attraction.  Emu 104: 205-211.

Miskelly, C.M., Taylor, G.A., Gummer, H. & Williams, R. 2009.  Translocations of eight species of burrow-nesting seabirds (genera Pterodroma, Pelecanoides, Pachyptila and Puffinus: Family Procellariidae).  Biological Conservation 142: 1965-1980.

John Cooper, ACAP Information Officer, 18 March 2014

90 000 Yelkouan Shearwaters flying through the Bosphorus in four hours may equal the species’ total population

In the course of the Bosphorus Coastal Count Marathon by the Yelkouan Shearwater Project Turkey 90 000 Vulnerable Yelkouan Shearwaters Puffinus yelkouan were counted flying south in four hours on 5 February 2014 in the strait between the Sea of Marmara and the Black Sea (click here).  Birds flying north were not included in the count.

 Yelkouan Shearwaters

Following the 73 000 birds counted on 4 February 2012 (also reported as 75 000) and 53 000 in 2011, this new count approaches the maximum value for the estimated population in the Mediterranean Basin: “[f]igures point to a total of 15,337-30,519 pairs equating to 46,000-92,000 individuals based on a population assessment covering the species's [sic] entire range.” (click here)

Yelkouan Shearwater Project Turkey aims at determining seasonal changes in the movements and numbers of Yelkouan Shearwaters in the Sea of Marmara, and in the two straits linking it to the Aegean (Dardanelles) and Black (Bosphorus) Seas.

The Yelkouan Shearwater has been proposed for listing within the Albatross and Petrel Agreement (click here).

Photographs from Yelkouan Shearwater Project Turkey. 

John Cooper, ACAP Information Officer, 17 March 2014

Juan Pablo Seco Pon, ACAP’s South American News Correspondent, is awarded his PhD for a study of seabird-trawler interactions

Juan Pablo Seco Pon (Laboratorio de Vertebrados, Instituto de Investigaciones Marinas y Costeras, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Argentina) and ACAP South American News Correspondent has been awarded his PhD with distinction by the National University of Mar del Plata this month for his study of the interactions between pelagic seabirds and Argentinian trawlers.

The English abstract of his thesis follows:

“This thesis addresses various aspects of the interaction between pelagic seabirds and the commercial ice trawl fishery targeting hake Merluccius hubbsi in Argentine waters.  The information was collected at sea on board trawlers pertaining to this fleet.  The results presented here clearly highlight the importance of fishery discard triggering the attendance of seabirds and the effect it has on the abundance and composition of the assemblages, as well as on the level of interactions.  We quantified in detail the interactions with different sections of the fishing gear and showed the importance of the net-sonde cable in seabird contact rate.  We also assessed the ecosystem value from the use of fish by-catch reduction devices, particularly focusing on its effect on seabird abundance and interaction levels.  The ice trawl fleet produces large quantities of discards (unwanted species and sizes) which are taken by seabirds.  Although such use of discards can be considered as a trophic “subside” [subsidy] from the fishery, it is clear that for species with history traits like albatrosses and petrels the negative impact in terms of incidental mortality largely overwhelms any positive effect of such subside.  The strategic management of discards in this fishing fleet (as in other fishing gears and fleets) should be the priority to be deepened in the national agenda to solve the problem of incidental mortality of seabirds.”


Juan Pablo aboard a longliner in the South Atlantic 

Juan Pablo works within the Vertebrate Research Group at the National University of Mar del Plata which is headed by Marco Favero, who has been Chair of ACAP’s Advisory Committee since 2007.

The ACAP Secretariat extends its congratulations to Juan Pablo and looks forward to a continued collaboration.

With thanks to Marco Favero for information.


Seco Pon, J.P. 2014.  Asociacion de aves marinas pelagicas a la flota de arrastre de altura: characterizacion integral de las interacciones y desarrollo de una estrategia de conservacion para especies amenazadas.  [Seabirds attending the high-seas trawl fleet: comprehensive characterisation of interactions and development of a conservation strategy for threatened species].  PhD Thesis, Universidad Nacional de Mar del Plata, Argentina.  161 pp.

John Cooper, ACAP Information Officer, 16 March 2014

Reducing bycatch of Scopoli’s Shearwaters by Spanish longliners in the Mediterranean

José Báez and colleagues (Centro Oceanográfico de Málaga, Instituto Español de Oceanografía, Málaga, Spain) have published in the journal Biodiversity and Conservation on how to avoid Scopoli’s Shearwaters Calonectris diomedea (a potential ACAP candidate species) being caught by Spanish longliners in the Mediterranean.

The paper’s abstract follows:

“Cory’s shearwater Calonectris diomedea is the main seabird species by-caught by the Spanish longline fleet operating in the western Mediterranean Sea.  Identification of the principal factors that determine this by-catch and understanding how they could be controlled is fundamental for improving the management of fisheries and so carry out a better conservation of Cory’s shearwater populations in the Mediterranean.  The aim of this paper was to model the longline by-catch of Mediterranean Cory’s shearwater in the Spanish Mediterranean longline fishery as a function of time of the year, technical characteristics of the fishing operation, and geographical location.  We used data recorded by an onboard observer program monitoring commercial longline fisheries. During the 10 years covered in this study, 80 birds were captured in 30 fishing operations out of a total of 2,587 observed fishing sets.  We used favourability functions and Random Forest analyses to relate the presence of Cory’s shearwater in the by-catch with the explanatory factors.  The most explanatory factor in relation to incidence of by-catch was the geographical location (longitude and fishing over the continental shelf) and then the technical characteristics of the fishing operation (number of hooks and fishing during non-working days).  Our conclusion is clear, because seabirds are more likely to approach longline vessels when trawlers are not allowed to operate (i.e. non-working days), activity of longliners should be limited to working days, and closing longliners activity during the month of October could reduce greatly reducing [sic] seabird bycatch.”

Cory's/Scopoli's Shearwater Calonectris borealis/diomedea at sea

Photograph by John Graham

With thanks to Richard Phillips for information.


Báez, J.C., García-Barcelona, S.,  Mendoza, M., Ortiz de Urbina, J.M., Real, R. & Macías, D. 2014.  Cory’s shearwater by-catch in the Mediterranean Spanish commercial longline fishery: implications for management.  Biodiversity and Conservation 23: 661-681.

John Cooper, ACAP Information Officer, 15 March 2014

ACAP Breeding Site No. 66. Bishop and Clerk Islets: Australia’s southernmost albatross colony

The Bishop and Clerk Islets lie approximately 33 km south of Australia’s Macquarie Island.  They consist of Bishop Islet, a rocky platform with some shallow patches of soil c. 3 ha in area with a highest point of c. 45 m, surrounded by 24 smaller islets, rocks and reefs, all of which are likely be wave-washed at times.

Bishop and Clerk Islets from the south...

 ...and from the east in 1993

Only three landings are known to have been made on the islets, all by ship-assisted helicopter, on 25 February 1965, 7 February 1976 and 23 December 1993.  The first landing was on a wave-washed rock close (c. 50 m) to Bishop Islet, the following two on the islet itself.  These visits ranged from less than an hour (in 1965) to three hours (in 1993 when seven personnel went ashore, some of whom are visible in a photograph below).

The only vascular plant recorded on Bishop Islet is the cushion plant Colobanthus muscoides “covering much of the central plateau”, along with two species of lichens.  Fifteen invertebrate species were collected during the 1993 visit.



Two views of the Black-browed Albatross colony on Bishop Islet in 1993

On all three visits, ACAP-listed and Near Threatened Black-browed Albatrosses Thalassarche melanophris have been recorded ashore on Bishop Islet.  At least 14 large chicks were identified on aerial photographs taken in 1967 along with at least 107 adults; 44 half-grown chicks and “many adults" were reported in 1976.

During the most recent visit in 1993 “[a] total of 141 nests [of Black-browed Albatrosses] was recorded.  Of these, 78 contained a chick, 13 an egg, ten had egg-shell fragments and 40 were empty.”  An eleven-year-old bird banded as a fledgling on Macquarie Island was present, showing interchange between the two localities.

A Black-browed Albatross on its nest on Bishop Islet in December 1993

A single Salvin’s Albatross T. cauta “of adult appearance” was present among the breeding Black-browed Albatrosses in 1993.  It did not appear to be breeding.

Other procellariiform seabirds confirmed breeding on Bishop Islet during the 1993 visit were Fairy Prion Pachyptila turtur, Wilson’s Storm Petrel Oceanites oceanicus and Common Pelecanoides urinatrix and South Georgian P. georgicus Diving Petrels.

The Bishop and Clerk Islets fall within the Macquarie Island Nature Reserve managed by the Tasmanian Parks and Wildlife Service. The island and its islets were declared a World Heritage Site in 1997.  Bishop & Clerk Islets have been assigned the status of a Special Management Area (SMA) restricting future landings.  The islets are surrounded by the Australian Commonwealth’s Macquarie Island Marine Park declared in 1999.

With thanks to Rachael Alderman, Noel Carmichael and Margaret Koopman for information and photographs.

Selected Literature:

Brothers, N. & Ledingham, R. 2008.  The avifauna of Bishop and Clerk Islets and its relationship to nearby Macquarie Island.  Papers and Proceedings of the Royal Society of Tasmania 142: 117-121.

Davies, K.F., Greenslade, P. & Melbourne, B.A. 1997.  The invertebrates of sub-Antarctic Bishop Island.  Polar Biology.

Environment Australia 2001.  Macquarie Island Marine Park Management Plan 2001-2008.  Canberra: Department of Environment and Heritage.

Frost, Leslie 2006.  Macquarie Island Nature Reserve and World Heritage Area Management Plan 2006.  Hobart: Parks and Wildlife Service, Department of Tourism, Arts and the Environment.  176 pp. + 15 maps.

Lugg, D.J., Johnstone, G.W. & Griffin, B.J. 1978.  The outlying islands of Macquarie Island. The Geographical Journal 144: 277-287.

MacKenzie, D. 1967.  The birds and seals of the Bishop and Clerk Islets, Macquarie Island.  Emu 67: 241-245.

John Cooper, ACAP Information Officer, 14 March 2014

The Agreement on the
Conservation of Albatrosses and Petrels

ACAP is a multilateral agreement which seeks to conserve listed albatrosses, petrels and shearwaters by coordinating international activity to mitigate known threats to their populations.

About ACAP

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119 Macquarie St
Hobart TAS 7000

Tel: +61 3 6165 6674