Summer Tanager

Fascinating facts about the Summer Tanager

• A summer tanager catches wasps mid-flight and smashes them against a branch up to 20 times before swallowing — a technique that strips the stinger and venom sac clean off. No other North American songbird hunts this way. They'll demolish a wasp nest in seconds, immune to the venom that would hospitalise a human.
• Males arrive on breeding grounds in late spring still wearing drab yellow plumage, then moult directly into breeding scarlet between April and June — the only major North American songbird that changes colour mid-season without leaving for winter. Females watch this transformation and choose mates based partly on how bright the new red becomes.
• Summer tanagers spend roughly 5 months in the tropics of Central and South America each winter, then fly 2,000+ km north to breed in North American woodlands. A bird banded in Texas has been recaptured in the exact same tree for 14 consecutive breeding seasons — GPS in a body smaller than a deck of cards.
• Young summer tanagers navigate migration routes they've never flown before using an inherited map encoded in their brain — no parent guides them. They rely on the Earth's magnetic field, the angle of sunset, and landmarks they've never seen. A first-year bird that gets lost still finds a wintering ground 2,000 km away with no instruction.
• Since the 1960s, summer tanagers have been slowly expanding their range northward, appearing in states where they never bred before — a response to warming springs and longer breeding seasons. They're one of the clearest winners of climate shift in North American songbirds, gaining new territory just as other species lose it.

At a glance

About the Summer Tanager

As the summer sun casts its warm glow over the forest, the Summer Tanager bursts into view, a vibrant splash of red amidst the dappled greens, its wings beating with a fierce intensity as it darts between the branches in pursuit of its insect prey. With a flick of its tail and a flash of its crimson plumage, this avian gem navigates the dense undergrowth with effortless ease, its bright, inquisitive eyes ever-vigilant for the next meal or potential mate. In its fluid, dynamic movements, we see a true embodiment of the season's vitality and exuberance, a living, breathing manifestation of summer's unbridled joy.

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