Why are the C. Sparrowhawk & B. Goshawk so similar?

To: David Adams <>
Subject: Why are the C. Sparrowhawk & B. Goshawk so similar?
From: David Adams <>
Date: Sat, 12 Jan 2013 09:26:43 +1100
> An all white raptor in the forest?

John Leonard wrote to mention the White Hawk, an unusual New World forest raptor:

Despite often being nearly all white, these birds seem to be doing pretty well for themselves over a huge area. The behavior section at the Cornell site is interesting. it sounds like these birds follow around parties of monkeys (arboreal foragers) and coati (ground foragers - relatives of Raccoons) pouncing on whatever prey is flushed. Perhaps their coloration is not selected for/against as they're opportunistic feeders? No's always easy to make up an evolutionary/ecological story...but that doesn't make it true.
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