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Birds of North America

Puzzle 63 · Along Beaches and Mudflats · Page 89 in print

Red Knot

Red Knots follow different food routes: eastern rufa birds feed on horseshoe crab eggs at Delaware Bay, while western roselaari birds eat grunion eggs in Mexico.

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The words

All About Birds: Red Knot (opens a new tab)

  1. Cassiope

    The genus of mountain-heather, used in nest linings.

  2. Chitons

    Marine animals included in the diet.

  3. Cockles

    Small bivalve prey.

  4. Delaware Bay

    An important spring feeding site for rufa knots.

  5. Gastropods

    A shellfish group eaten by knots.

  6. Grunion Eggs

    Food eaten by western roselaari knots before leaving Mexico.

  7. Peat Banks

    Eroded coastal remnants of ancient forest used as habitat.

  8. Rapid Picking

    A feeding motion used when taking eggs and larval mussels.

  9. Roselaari

    The western subspecies that eats grunion eggs in Mexico.

  10. Rufa

    The subspecies that feeds on horseshoe crab eggs at Delaware Bay.

  11. Salt Ponds

    A coastal habitat used during migration or winter.

  12. Sedge Meadows

    Habitat used after young can fly.

  13. Song Flight

    An aerial territorial display performed by males.

  14. Sunny Slopes

    South-facing or southwest-facing tundra nesting habitat.

  15. Tubular Lichen

    Material used to finish nest linings.

Sources

  1. Red Knot: Life HistoryCornell Lab of Ornithology

How we choose sources and photographs