- Cerulean warblers are an increasingly rare species of bird that spends most of its time high in the canopy. The bird is particularly fond of white oaks, cucumber magnolias, and sugar maples.
- Females of the species drop from their nests high in the treetops, only opening their wings to fly just before they hit the ground.
- In the 19th century Cerulean warblers were abundant. Today, populations have declined 70% since the 1960s – faster than any other warbler in the United States.
- Shade grown coffee plantations provide important winter habitat to cerulean warblers, and purchasing this type of coffee can help support the species.