#3 Blackburnian Warbler vs. #14 Chestnut-collared Longspur

#3 – Blackburnian Warbler

• The Blackburnian Warbler only form flocks during migration and are solitary on their wintering grounds.
• The Blackburnian Warbler is the only North American warbler with an orange throat.
• While Blackburnian Warblers are typically insectivores, they will eat berries on their wintering grounds.
• Due to the height of their nests, there is little know about their breeding ecology.
• Blackburnian Warblers are depended on spruce trees on their breeding grounds.

#14 - Chestnut-collared Longspur

• A group of longspurs is known as a “drive.”
• Chestnut-collared Longspurs prefer to nest in areas that have been recently grazed or mowed.
• Longspur refers to the elongated claw of the hind tow.
• Chestnut-collared Longspur numbers have decreased as native prairie habitat has been destroyed.
• Chestnut-collared Longspurs nest twice during their breeding season from the beginning of May to the end of July.