The Four Basic Song Patterns

The Four Basic Song Patterns

In the last post, I covered the five basic pitch patterns, introducing some vocabulary to help distinguish between different types of individual notes. Today I’m going to introduce some vocabulary to help distinguish between different types of groups of notes — that is, different types of songs.

The Five Basic Pitch Patterns

The Five Basic Pitch Patterns

The “How to Read Spectrograms” section of this blog is in desperate need of an upgrade, so today I’m starting a series of posts to help people describe and visualize sounds as simply and clearly as possible. Our first topic: pitch patterns.

Long Calls of Gulls

Long Calls of Gulls

Most people don’t listen to gulls much. But as I’ve paid more attention to them over the past year, I’ve realized that many species can indeed be identified by sound alone, and this fact has greatly improved my birding skills.

The Warbler Guide

The Warbler Guide

I am confident that this book will enhance the way people look at warblers. I am less confident, but ardently hopeful, that it will enhance the way they listen to warblers as well.

Cornell’s Master Set

Cornell’s Master Set

The Macaulay Library at the Cornell Laboratory of Ornithology has just released what it’s calling the “Master Set” – the most comprehensive audio guide to North American bird sounds ever published.

“Russet-backed” vs. “Olive-backed” Swainson’s Thrushes

“Russet-backed” vs. “Olive-backed” Swainson’s Thrushes

Over the past decade, the work of Kristen Ruegg and her colleagues has shown that the two forms of Swainson’s Thrush not only look different, but migrate on different schedules to markedly different wintering grounds. They hybridize in a contact zone in British Columbia, but that contact zone is quite narrow, prompting occasional rumors and rumblings of a potential future species split. One of the proposed lines of evidence concerns differences in vocalizations.

More on the Mystery Empid Call

More on the Mystery Empid Call

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.