| The Bay Citizen: A Green Idea That Sounded Good Until the Trees Went to Work The New Zealand Christmas tree thrives in San Francisco, but is destructive as well. Nonetheless, it is not easy for a homeowner to gain city permission to remove one. feeds.nytimes.com |
Vital Signs: Hazards: Watch Where You Point That Laser High-powered hand-held laser pointers can cause serious eye injuries, several physicians warn in The New England Journal of Medicine. feeds.nytimes.com |
Simplifying the Decision for a Prostate Screening New research offers simple, practical advice - at least, for men 60 and older - about whether to get P.S.A. screening or not. feeds.nytimes.com |
Today's Mystery Bird for you to identify | GrrlScientist This challenging-to-identify shorebird goes by two different scientific names. Can you identify this bird and tell me both scientific names?Mystery Bird photographed at Iona Beach Regional Park on Iona Island in Richmond, British Columbia, Canada. [I will identify this bird for you in 48 hours]Image: Kevan Cowcill, 15 September 2010 (You'll probably want to look at this challenging bird with binoculars).Canon PowerShot SX20IS. Probably not more than 20x magnification. This challenging-to-identify shorebird goes by two different scientific names. Can you identify this bird and tell me both scientific names? Daily Mystery Bird Rules: 1. Please name at least one field mark that supports your identification, keeping in mind that more than one field mark is often necessary to distinguish between species. IDs without any supporting information are not valid and may be deleted by the moderators. 2. Expert and intermediate level birders: do NOT try to be the first to blurt out the mystery bird's ID. Instead, please provide helpful hints, such as descriptions, literary references, puns, personal anecdotes, and other forms of discussion and assistance for beginning birders and for those following on their iPhones without naming the species. Expert and intermediate birders are free to name the bird species 24 or more hours after it was first published.3. Each mystery bird is usually accompanied by a question or two. These questions can be useful for identifying the pictured species, but may instead be used to illustrate an interesting aspect of avian biology, behaviour or evolution, or may be intended to generate conversation on other topics, such as conservation. 4. Each bird species will be demystified 48 hours after publication. If you have bird images, video or mp3 files that you'd like to share with a large and appreciate audience, feel free to email them to me for consideration.GrrlScientistguardian.co.uk © Guardian News & Media Limited 2010 | Use of this content is subject to our Terms & Conditions | More Feeds guardian.co.uk |
Scientist at Work: Expeditionary Civilization A field expedition brought in by helicopter to the Peruvian forest sets up its own small, slightly off-kilter civilization. feeds.nytimes.com |