posted September 12th, 2012; last edited September 13th, 2012 –– David Sibley
Below are three sparrows photographed in Concord, MA on 11 Sep 2012. Can you identify the species?
Today’s quiz features a bonus
Everyone who submits a perfect score by noon Eastern Time tomorrow – Thursday September 13th – will be entered in a drawing to win a prize. And we have a winner! Congratulations [...]
posted March 7th, 2012; last edited March 7th, 2012 –– David Sibley
Just released and available for download at the Windows Phone Marketplace – The Sibley eGuide can now be used on any device running Windows Phone 7. All of the features of the eGuide on other platforms are included here:
compare any two images, maps, or sounds on a single screen filter by state and by [...]
posted February 27th, 2012; last edited February 27th, 2012 –– David Sibley
I’m happy to report some news about the Sibley eGuide to birds:
The price of the app in all versions has been reduced 30% to $19.99, and a new Lite version for iPhone and iPad is available for free at iTunes. This is a fully functional version of the app that includes only 30 [...]
posted January 20th, 2012; last edited January 20th, 2012 –– David Sibley
The Sibley eGuide to birds was recently adapted for the Kindle Fire tablet (and still works on other Android OS devices). You can find it at the Amazon app store.
In other news an update for the Android OS is coming soon that will (among other things) remove the annoying requirement to verify over the [...]
posted December 5th, 2011; last edited December 5th, 2011 –– David Sibley
The Sibley eGude to Birds for iPhone and iPad has been updated to be a universal app. The new version takes advantage of the full screen of the iPad to show images and maps at high resolution, show all information (images, text, map, and audio) on a single screen, and in landscape orientation allows viewing [...]
posted June 24th, 2011; last edited June 24th, 2011 –– David Sibley
23 Jun 2011 – Concord, MA
Sitting at my desk today I was roused by a bird call that I did not immediately recognize. This is a very rare occurrence for me, especially at my house where I spend many hours every day, and I know the birds that are here very well. As the [...]
posted March 14th, 2011; last edited May 7th, 2012 –– David Sibley
What makes this app different from other bird ID apps?
A few key points that set this guide apart from other bird ID apps:
Illustrated with paintings (which are better than photos for comparing similar species) from the best-selling Sibley Guide to Birds. Many more sounds, over 2400 different examples of over 700 species. Easy [...]
posted March 8th, 2011; last edited February 4th, 2013 –– David Sibley
The Sibley Guide to Birds – the most popular, most comprehensive, and fastest-selling printed field guide to North American birds – is now available in digital form as an app for several mobile phone platforms.
Scroll down for a description of features. FAQ and trouble-shooting is here.
The entire content of the Sibley Guide [...]
posted August 31st, 2010; last edited September 14th, 2010 –– David Sibley
An article in the Aug 28, 2010 edition of the New York Times – Warning to Birds: All-Glass Buildings Ahead – describes recent developments in window technology to prevent bird collisions, which is very encouraging because it demonstrates a recognition of the issue by the major news media and by industry. Thanks to the work [...]
posted January 19th, 2010; last edited November 18th, 2010 –– David Sibley
A list of my most-frequently-used online tree references
Taxonomy for higher-level groups (Classes, Orders and Families) in the guide follows the latest revision of the Angiosperm Phylogeny Group. For a quick reference, Wikipedia seems to be an excellent source for good, readable, and up-to-date overviews of taxonomy for most North American plant groups. The [...]