A few months ago I wrote about a mysterious new “whit-beert” call that I took to be a previously undescribed sound of Yellow-bellied Flycatcher. Now, new information has come to light that calls my earlier conclusions into question. [Read more]
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A few months ago I wrote about a mysterious new “whit-beert” call that I took to be a previously undescribed sound of Yellow-bellied Flycatcher. Now, new information has come to light that calls my earlier conclusions into question. [Read more] Many species of warbler and sparrow give high, sharp “tink” notes that seem worth of their own category, separate from the “call” and the “flight call.” [Read more] In trying to catalog Lapland Longspur calls, I ended up making a map of variation. [Read more] Ornithologists use the term variety to describe the pattern of delivery of a bird song over time. In the field, it can take many minutes of listening to determine a bird’s pattern. Animated GIFs of spectrograms can condense all this listening into just a few seconds of looping video: [Read more] Several authors have described Rusty Blackbirds as having two types of songs. However, I came to the conclusion that I was hearing three different types of songs from the species, not two. Or is that two types of song and a very song-like call? [Read more] If you had asked me six months ago whether Brown Creeper had a distinctive dawn song, I would have told you no. But as a matter of fact, it does. [Read more] The internet is full of wild bird videos. If you want to learn about the behavior and vocalizations, it can be a great place to start, at least for certain species. Gulls are a terrific example. [Read more] Gull enthusiasts are weird. They hang out at landfills. They go to the beach when it’s freezing cold, or just to see what’s in the parking lot. They’ll stare at a single bird for hours, puzzling over insanely minute details. When it comes to identifying a mystery gull, they look at everything; they ignore nothing. Except vocalizations. [Read more] What bird species always twists its head to the left when singing, never to the right? [Read more] As far as I know, three species of Empids give these calls. In one species, the two-part call is familiar enough to be mentioned in field guides, at least. The two-part call of the second species is described only in the scientific literature. And that of the third is, as far as I know, being described in this blog post for the first time. [Read more] |
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