One clip names both of them

1,538 views between them.

Grey Heron outweighs Great Egret 1.7× — 1.4 kg against 0.9 kg.

Tale of the tape

Body mass

0.87 kg

🦩 Great Egret · AVONET

1.44 kg

🐦 Grey Heron · AVONET

Maximum lifespan

23 yr

🦩 Great Egret · AnAge

38 yr

🐦 Grey Heron · AnAge

Bars are sized against the larger of the two figures.

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Shared ancestry

The closest group they share is Ardeidae (family), home to 120 species.

We know what their shared ancestor was, but not when it lived — no dated family tree spans both of them yet.