Birds
Guillemot
Uria aalge
About
Common guillemots (or common murres) are seabirds that nest on narrow cliff ledges with no nesting material whatsoever — just bare rock above crashing waves.
Their Eggs
Dramatically pointed (pyriform) eggs with wildly variable coloring — blue, green, white, or cream with brown, black, or red streaks and blotches. No two eggs look the same.
Egg Size Comparison
Fun Fact
Guillemot eggs are extremely pointed (pyriform) so they roll in a tight circle rather than off the cliff edge. Each egg's unique color pattern allows parents to identify their own egg among thousands on a crowded ledge.