Do you know this birdie?

“I found a greater crested tern on our beach – it is ringed with a metal ring on the left leg and yellow plastic ring on the right leg. I haven’t managed to catch it so I don’t know the ringnumber, but I was wondering whether anyone of our fellow Seychelles’ birders remembers ringing a greater crested tern? It’s nice to know that it is currently hanging out on Denis!”

 

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Janske van de Crommenacker, the Island Environment Manager on Denis Island spotted the Greater Crested tern (Thalasseus bergii) a few weeks ago. This is a large tern has a rather shaggy black crest and a heavy yellow-green bill. It is grey above an white below and has a forked white tail.

When feeding, these birds dive into the water to catch their prey such as fish and squid. They also pick turtle hatchlings off the water surface.

350 pairs of Brown noddies are estimated to breed on Denis Island

In February 2016 a Brown noddy (Anous stolidus) census was conducted on Denis Island by Green Islands Foundation (GIF) staff and volunteers to estimate the size of the breeding population. Brown noddies are commonly ground nesting but are seen far more frequently nesting in the crowns of coconut trees on Denis Island, possibly due to the presence of mammal predators in the recent past before the eradications of rats and cats. Continue reading “350 pairs of Brown noddies are estimated to breed on Denis Island”

Denis Island’s breeding population of Fairy terns counts nearly 2000 breeding pairs

Denis Island’s breeding population of Fairy terns counts nearly 2000 breeding pairs
Between the 17th and 24th of January 2016 a census of breeding Fairy terns (Gygis alba) was conducted by Green Islands Foundation (GIF) staff and volunteers on Denis Island. Continue reading “Denis Island’s breeding population of Fairy terns counts nearly 2000 breeding pairs”

Deciding when to lend a helping hand: a decision-making framework for seabird island restoration

(Rachel T. Buxton, Christopher J. Jones, Philip O’Brien Lyver, David R. Towns and Stephanie B. Borrelle)

photo by Steve Read

Following the removal of an introduced species, island restoration can follow two general approaches: passive, where no further intervention occurs and the island is assumed to recover naturally, and; active, where recovery of key taxa (e.g. seabirds) is enhanced by manipulating movement and demography. Continue reading “Deciding when to lend a helping hand: a decision-making framework for seabird island restoration”

Seabird Census Complete

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On Cousin Island Special Reserve, Nature Seychelles staff and volunteers complete two main seabird censuses annually, coinciding with the two different monsoon seasons. At these times censuses are conducted for the year-round nesting birds, such as White-Tailed Tropicbirds (Phaethon lepturus), Tropical Shearwaters (Puffinus lherminieri), and White Terns (Gygis alba). Continue reading “Seabird Census Complete”

Monitoring the next generation of Seabirds in Seychelles

Fairy tern and chick
Fairy tern and chick

One of the many exciting volunteer tasks on Cousin Island Special Reserve is monitoring the resident breeding seabirds. During the past two months we have been monitoring the elegant white tern (Glygis alba), and the ferocious looking white-tailed tropic bird (Phaethon lepturus). Continue reading “Monitoring the next generation of Seabirds in Seychelles”