Black-crowned Night Heron
Nycticorax nycticorax

– medium-sized heron, considerably smaller and stubbier than Grey Heron
– nocturnal migrant, diurnal movements take place
– migrates singly or in flocks in (loose) formation

BIF667_MPU_I8Z8207_100630_bcnheron-1-JUV_hu_kiskunsagi
Black-crowned Night Heron Nycticorax n. nycticorax, 1CY
BIF0667, 30/06/2010, Kiskunsági, Hungary, Mathias Putze
– stout, medium-sized heron with rather short and strong bill
– upperside base colour of 1CY is uniform brown
– wing coverts and scapulars with white tips
– resembles Eurasian Bittern but note unbarred remiges and shorter legs

BIF668_MPU_I8Z8195_100630_bcnheron-1-JUV_hu_kiskunsagi
Black-crowned Night Heron Nycticorax n. nycticorax, 1CY
BIF0668, 30/06/2010, Kiskunsági, Hungary, Mathias Putze
– typical posture in flight with ‚hanging‘ feet and bill tilted downwards
– body diffusely streaked
– in 1CY bill yellowish, iris yellow

BIF663_MPU_I8Z8141_100630_bcnheron-1-AD_hu_kiskunsagi
Black-crowned Night Heron Nycticorax n. nycticorax, AD
BIF0663, 30/06/2010, Kiskunsági, Hungary, Mathias Putze
– typical posture in flight with slightly down-tilted bill
– large orange eye, black bill in full BREED
– upperwing plain grey

BIF664_MPU_I8Z8140_100630_bcnheron-1-AD_hu_kiskunsagi
Black-crowned Night Heron Nycticorax n. nycticorax, AD
BIF0664, 30/06/2010, Kiskunsági, Hungary, Mathias Putze
– underwing coverts only slightly contrasting to somewhat darker grey remiges
– body lighter grey
– only toes protruding the tail

BIF665_MPU_I8Z8904_100630_bcnheron-1-AD_hu_kiskunsagi
Black-crowned Night Heron Nycticorax n. nycticorax, AD
BIF0665, 30/06/2010, Kiskunsági, Hungary, Mathias Putze
– wings held rather stiff
– flight with rather shallow wingbeats
– black cap and back

BIF666_MPU_I8Z7803_100629_bcnheron-1-AD_hu_kiskunsagi
Black-crowned Night Heron Nycticorax n. nycticorax, AD
BIF0666, 29/06/2010, Kiskunsági, Hungary, Mathias Putze
– bill more decurved than in other herons


Black-crowned Night Heron Nycticorax n. nycticorax, AD, 1CY
BIF2942, 29/08/2015, Mallorca, Spain, Martin Grimm
– during non-breeding season also AD with yellowish lower mandible

BIF669_MPU_I8Z8176__100630_bcnheron-2-AD-1-2CY_hu_kiskunsagi
Black-crowned Night Heron Nycticorax n. nycticorax, AD, 2CY
BIF0669, 30/06/2010, Kiskunsági, Hungary, Mathias Putze
– at distance underwing uniform dark contrasting to the lighter body
– in summer 2CY with retained juvenile feathers, iris already turned dark orange

BIF670_MPU_I8Z7685_100629_bcnheron-2-AD-1-2CY_hu_kiskunsagi
Black-crowned Night Heron Nycticorax n. nycticorax, AD, 2CY
BIF0670, 29/06/2010, Kiskunsági, Hungary, Mathias Putze
– white tips to the greater and primary upperwing coverts but greyish lesser and median coverts enable aging as 2CY even at greater distance

BIF671_MPU_I8Z7613_100629_bcnheron-FL-AD-2CY_hu_kiskunsagi
Black-crowned Night Heron Nycticorax n. nycticorax, AD, 2CY
BIF0671, 29/06/2010, Kiskunsági, Hungary, Mathias Putze
– note the stout appearance

BIF672_MPU_I8Z8793_100630_bcnheron-3-AD_hu_kiskunsagi
Black-crowned Night Heron Nycticorax n. nycticorax, AD
BIF0672, 30/06/2010, Kiskunsági, Hungary, Mathias Putze

bif0950_mhe1470_111023_bcnheron-1-1cy_az_besh-barmag
Black-crowned Night Heron Nycticorax n. nycticorax, 1CY
BIF0950, 23/10/2011, Besh Barmag, Azerbaijan, Michael Heiß

voice:


Black-crowned Night Heron Nycticorax nycticorax sp, calls in flight
BIF2903, 08/12/2018, Ngulia, Kenya, Roland Neumann


– detail –

– full overview –
Black-crowned Night Heron Nycticorax nycticorax ssp., calls in flight
BIF2904, 08/12/2018, Tsavo West NP, Kenya, Roland Neumann


Black-crowned Night Heron Nycticorax nycticorax ssp., calls in flight
BIF2905, 08/12/2018, Tsavo West NP, Kenya, Roland Neumann


– detail –

– full overview –
Black-crowned Night Heron Nycticorax n. nycticorax, calls in flight
BIF0945, 02/10/2011, Besh Barmag, Azerbaijan, Michael Heiß


– detail –

– full overview –
– gaps shortened –
Black-crowned Night Heron Nycticorax n. nycticorax, calls in flight
BIF0946, 29/09/2011, Besh Barmag, Azerbaijan, Michael Heiß


– detail –

– full overview –
– gaps shortened –
Black-crowned Night Heron Nycticorax n. nycticorax, calls in flight
BIF0947, 23/09/2011, Besh Barmag, Azerbaijan, Michael Heiß


– gaps shortened –
Black-crowned Night Heron Nycticorax n. nycticorax, calls in flight
BIF0948, 20/08/2011, Besh Barmag, Azerbaijan, Michael Heiß

comparison species:
Cattle Egret (v)
Squacco Heron (v) (a)
Little Egret (v)
Eurasian Bittern (v) (a)
Little Bittern (a)

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