Saturday, September 4, 2010

Short-tailed Shearwaters

November 22, 2009 by BayKeeper  
Filed under Education, Featured, Wild Things

Short-tailed Shearwaters (Puffinus tenuirostris aka Muttonbirds) have been reported dead on Port Phillip Bay beaches over the past week. I found five at Point Gellibrand today. Large numbers of dead seabirds prompts concern that they may have suffered from pollution or some other unnatural threat. But in this case it seems to be a cyclical event, linked to the incredible distance travelled on their annual migration around the Pacific. When they return in November, rough weather can be the end of birds weakened by the journey.

Puffinus_tenuirostris_resized

The fledgling ‘muttonbird’ pictured (courtesy of wikipedia) is looking forward to an annual round trip of around 15,000km. The October 2009 edition of the Bird Observer reports a Short-tailed Shearwater found dead at Port Fairy Beach, more than 48 years and 3 months after it was banded as an adult on Griffiths Island, Port Fairy, in 1960. Another curious fact is that Shearwater eggs (just one per burrow) are all laid on, or within a few days of November 25!

Comments

One Response to “Short-tailed Shearwaters”
  1. Alison says:

    Hi Guys, also we found 30 dead birds on Seaford Beach over the last week. Carcasses seemed in reasonable shape – mature birds, but not skinny or in poor condition. If November 25th is the day then there will be a heck of a lot of grunting and squeezing going on tonight!!! Lots of eggs tomorrow. I saw thousands of mutton birds flying down the coast of Eastern Tasmania in February last year, almost like a river of birds and marveled at the sheer numbers and their tenacity. (ps like the upgraded website)

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