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Heron / Grey Heron
GREAT BLUE HERON / GREY HERON
by Adrian
Binns 02/06
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GREAT
BLUE HERON |
GREY
HERON |
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![]() © A & J Binns |
![]() © A & J Binns |
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| Size and Structure |
46” considerable larger than Grey. Up
to 20% larger with a longer neck, more massive bill and larger head |
36-40” |
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| Thighs |
Rufous |
White |
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| Crown Stripe |
Adults
have a narrower black lateral crown-stripe |
Broad
black lateral crown-stripe |
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| Neck |
Side
to neck vinous or suffused with pinkish- lilac |
Side
of neck suffused white-grey. The head and cheek on Grey Heron is very
white |
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| Marginal
Coverts |
Leading
edge of the wing ‘epaulette’ - Rufous and black |
White
and black |
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| Carpal
Coverts |
Mottled
rufous and white carpal coverts and primary
covert bases |
White,
forming conspicuous ‘leading
lights’
in flight |
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| Juveniles |
Usually
brownier on upper parts and buffier
below than Grey Heron, but always show some rufous
thighs and shoulders. Tend to have
strongly mottled with whitish-buff sides to the neck |
Plainer
neck sides, with the front of the neck and upper breast more boldly streaked
with dark gray to blackish |
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