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posted May 14th, 2012; last edited May 14th, 2012 –– David Sibley Part 5 of my introduction to learning bird songs is now up (click here). Many of the words that we use to describe the quality of a bird song also carry information about pitch and tempo. For example, only sounds in a certain pitch range can be described as whistled, and we tend to [...] posted May 11th, 2012; last edited May 11th, 2012 –– David Sibley Part 4 of my introduction to learning bird songs is now up (click here). In the narrowest sense, the quality of a bird’s voice would refer strictly to the tonal quality of the sound. Musicians call this “timbre”, and it allows us to distinguish a trumpet from a violin from a flute, even when [...] posted May 10th, 2012; last edited May 10th, 2012 –– David Sibley Today’s quiz features a bonus And we have a winner! Congratulations to Laramie, and thanks to everyone who entered! There will be another quiz giveaway next week – stay tuned. Everyone who submits a perfect score by 9 PM Eastern Time on Thursday May 10th, will be entered in a drawing to [...] posted May 8th, 2012; last edited May 8th, 2012 –– David Sibley Part 3 of my introduction to learning bird songs is now up (click here). In this discussion, tempo refers to the overall “pace” of the song, the number of notes or phrases per second. We describe this as fast or slow, and over the course of the whole song the tempo can be steady [...] posted May 7th, 2012; last edited May 7th, 2012 –– David Sibley Like a previous quiz this one shows warblers as they are so often seen in the field – with just the underside of the body visible. Clues such as tail shape, overall size, behavior and other subtleties can be very helpful with experience. In this quiz I focus on the more objective features of plumage. [...] posted May 4th, 2012; last edited May 4th, 2012 –– David Sibley Pitch is simply our perception of the frequency (or wavelength) of a sound, which we describe as high to low. Birds’ range of hearing is similar to our own, and bird song covers the full range to the limits of human hearing, from the lowest hooting sounds of Great Gray Owl or Spruce Grouse to [...] posted May 3rd, 2012; last edited May 3rd, 2012 –– David Sibley Here are five species of intensely colorful spring birds. Can you identify them from just the small parts that are visible? Today’s quiz features a bonus We have a winner! Congratulations to Chuck, who will get the signed copy of Bright Wings. Thanks to everyone who played, there will be another chance next week. [...] posted May 2nd, 2012; last edited May 2nd, 2012 –– David Sibley This quiz shows just the bodies of five species of small drab songbirds with wingbars. In other quizzes I’ve given a big clue in the form of telling you the family of the birds in the quiz (e.g. “More Warblers”), but in this quiz your challenge is to identify the family. This level of identification [...] posted May 1st, 2012; last edited May 1st, 2012 –– David Sibley This quiz shows warblers as they are so often seen in the field – with just the underside of the body visible. Clues such as tail shape, overall size, behavior and other subtleties can be very helpful with experience. In this quiz I focus on the more objective features of plumage. When all [...] posted April 27th, 2012; last edited April 27th, 2012 –– David Sibley Here are some partially obscured warblers to test your knowledge. Look especially at the pattern of wingbars to distinguish these three. With thanks, again, to Brian E. Small for providing the beautiful photos. You can see lots more at his website. [...] |
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