Butterflies of Cuba
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    • Species List >
      • Papilionidae : Papilioninae >
        • Battus devilliers - De Villiers' Swallowtail
        • Battus polydamas - Polydamas Swallowtail
        • Heraclides andraemon - Bahaman Swallowtail
        • Heraclides androgeus - Androgeus Swallowtail
        • Heraclides caiguanabus - Poey's Swallowtail
        • Heraclides oviedo - Oviedo's Swallowtail
        • Heraclides oxynius - Cuban Black Swallowtail
        • Heraclides pelaus - Pelaus Swallowtail
        • Heraclides ponceana - Dusky Swallowtail
        • Neographium celadon - Cuban Kite Swallowtail
        • Papilio demoleus - Lime Swallowtail
        • Papilio polyxenes - Black Swallowtail
        • Parides gundlachianus - Gundlach's Swallowtail
        • Pterourus palamedes - Palamedes Swallowtail
        • Pterourus troilus - Spicebush Swallowtail
      • Hesperiidae : Eudaminae >
        • Aguna asander - Gold-spotted Aguna
        • Aguna claxon - Emerald Aguna
        • Autochton potrillo - Potrillo Skipper
        • Cecropterus dorantes - Dorantes Longtial
        • Chioides marmorosa - Cuban Longtail
        • Epargyreus zestos - Zestos Skipper
        • Phocides pigmalion - Mangrove Skipper
        • Polygonus leo - Hammock Skipper
        • Proteides maysi - May's Skipper
        • Proteides mercurius - Cuban Mercurial Skipper
        • Telegonus anausis - Caribbean Yellow-tipped Flasher
        • Telegonus cassander - Cuban Flasher
        • Telegonus cellus - Golden-banded Skipper
        • Telegonus habana - Frosty Flasher
        • Telegonus talus - Green Flasher
        • Telegonus xagua - Antillean Flasher
        • Urbanus proteus - Common Long-tailed Skipper
      • Hesperiidae : Hesperiinae >
        • Asbolis capucinus - Monk Skipper
        • Atalopedes mesogramma - Mesogramma Skipper
        • Calpodes ethlius - Canna Skipper
        • Carystoides mexicana - Mexican Ruby-eye
        • Choranthus radians - Radians Skipper
        • Cymaenes tripunctus - Three-spotted Skipper
        • Euphyes cornelius - Cornelius Skipper
        • Euphyes singularis - Singularis Skipper
        • Holguinia holguin - Holguin Skipper
        • Hylephila phyleus - Fiery Skipper
        • Lerodea eufala - Eufala Skipper
        • Nyctelius nyctelius - Violet-banded Skipper
        • Oarisma bruneri - Bruner's Skipperling
        • Oarisma nanus - Nanus Skipperling
        • Panoquina corrupta - Corrupt Skipper
        • Panoquina lucas - Purple-washed Skipper
        • Panoquina ocola - Ocola Skipper
        • Panoquina panoquinoides - Obscure Skipper
        • Parachoranthus magdalia - Magdalia Skipper
        • Perichares philetes - Caribbean Ruby-eye
        • Polites baracoa - Baracoa Skipper
        • Pyrrhocalles antiqua - Caribbean Skipper
        • Rhinthon cubana - Cuban Rhinthon
        • Saliana esperi - Perching Saliana
        • Synapte malitiosa - Caribbean Faceted Skipper
        • Wallengrenia misera - Cuban Broken-dash
      • Hesperiidae : Pyrginae >
        • Anastrus sempiternus - Common Anastrus
        • Burca braco - Braco Skipper
        • Burca concolor - Concolorous Skipper
        • Burca cubensis - Cuban Skipper
        • Burnsius crisia - Antillean Checkered Skipper
        • Burnsius oileus - Tropical Checkered Skipper
        • Chiomara gundlachi - Gundlach's Duskywing
        • Eantis munroei - Munroe's Sicklewing
        • Eantis papinianus - Cuban Sicklewing
        • Ephyriades brunnea - Florida Duskywing
        • Ephyriades zephodes - Zephodes Duskywing
        • Erynnis zarucco - Zarucco Skipper
        • Gesta gesta - Impostor Duskywing
        • Ouleus fridericus - Fridericus Spreadwing
      • Pieridae : Colladinae >
        • Abaeis nicippe - Sleepy Orange
        • Anteos clorinde - White-angled Sulphur
        • Anteos maerula - Yellow-angled Sulphur
        • Colias eurytheme - Orange Sulphur
        • Eurema amelia - Cuban Yellow
        • Eurema boisduvaliana - Boisduval's Yellow
        • Eurema daira - Barred Yellow
        • Eurema elathea - Banded Yellow
        • Eurema lucina - Smudged Yellow
        • Kricogonia cabrerai - Cuban Sulphur
        • Kricogonia lyside - Lyside Sulphur
        • Nathalis iole - Dainty Sulphur
        • Phoebis agarithe - Large Orange Sulphur
        • Phoebis argante - Apricot Sulphur
        • Phoebis avellaneda - Orange-washed Sulphur
        • Phoebis neleis - Neleis Sulphur
        • Phoebis orbis - Orbis Sulphur
        • Phoebis philea - Orange-barred Sulphur
        • Phoebis sennae - Cloudless Sulphur
        • Phoebis statira - Statira Sulphur
        • Pyrisitia chamberlaini - Chamberlain's Yellow
        • Pyrisitia dina - Bush Sulphur
        • Pyrisitia larae - Confusing Yellow
        • Pyrisitia lisa - Little Yellow
        • Pyrisitia messalina - Whitish Yellow
        • Pyrisitia nise - Mimosa Yellow
        • Pyrisitia proterpia - Tailed Orange
        • Pyrisitia venusta - Pale Yellow
        • Zerene cesonia - Southern Dogface
      • Pieridae : Dismorphiinae >
        • Dismorphia cubana - Cuban Mimic-White
      • Pieridae : Pierinae >
        • Ascia monuste - Great Southern White
        • Ganyra menciae - Cuban White
        • Glutophrissa drusilla - Florida White
        • Melete salacia - Black-striped White
        • Pontia protodice - Checkered White
      • Riodinidae >
        • Dianesia carteri - Caribbean Metalmark
      • Lycaenidae : Polyommatinae >
        • Brephidium exilis - Pygmy Blue
        • Cupido comyntas - Eastern Tailed-Blue
        • Cyclargus ammon - Nickerbean Blue
        • Cyclargus thomasi - Miami Blue
        • Hemiargus ceraunus - Ceraunus Blue
        • Leptotes cassius - Cassius Blue
        • Leptotes hedgesi - Hedges' Blue
        • Pseudochrysops bornoi - Antillean Blue
      • Lycaenidae : Theclinae >
        • Allosmaitia coelebs - Cuban Hairstreak
        • Chlorostrymon maesites - Amethyst Hairstreak
        • Chlorostrymon simaethis - Silver-banded Hairstreak
        • Electrostrymon angelia - Fulvous Hairstreak
        • Eumaeus atala - Atala Hairstreak
        • Ministrymon azia - Grey Ministreak
        • Nesiostrymon celida - Caribbean Hairstreak
        • Strymon acis - Bartram's Scrub-Hairstreak
        • Strymon bazochii - Lantana Scrub-Hairstreak
        • Strymon istapa - Mallow Scrub-Hairstreak
        • Strymon limenia - Limenia Scrub-Hairstreak
        • Strymon martialis - Martial Scrub-Hairstreak
        • Strymon toussainti - Toussaint's Scrub-Hairstreak
      • Nymphalidae : Apaturinae >
        • Asterocampa idyja - Dusky Emperor
        • Doxocopa laure - Silver Emperor
      • Nymphalidae : Biblidinae >
        • Dynamine postverta - Mexican Sailor
        • Dynamine serina - Caribbean Sailor
        • Eunica heraclitus - Cuban Purplewing
        • Eunica monima - Dingy Purplewing
        • Eunica tatila - Florida Purplewing
        • Hamadryas amphinome - Red Cracker
        • Hamadryas februa - Gray Cracker
        • Hamadryas feronia - Variable Cracker
        • Lucinia sida - Caribbean Banner
      • Nymphalidae : Charaxinae >
        • Anaea cubana - Cuban Leafwing
        • Archaeoprepona demophoon - Two-spotted Prepona
        • Cymatogramma echemus - Chestnut Leafwing
        • Hypna clytemnestra - Silver-studded Leafwing
        • Siderone galanthis - Red-striped Leafwing
      • Nymphalidae : Cyrestinae >
        • Marpesia chiron - Many-banded Daggerwing
        • Marpesia eleuchea - Caribbean Daggerwing
      • Nymphalidae : Danainae >
        • Anetia briarea - Many-spotted King
        • Anetia cubana - Cuban King
        • Anetia pantherata - Great King
        • Danaus eresimus - Soldier
        • Danaus gilippus - Queen
        • Danaus plexippus - Monarch
        • Greta cubana - Cuban Clearwing
        • Lycorea halia - Tiger Mimic Queen
      • Nymphalidae : Heliconiinae >
        • Agraulis vanillae - Gulf Fritillary
        • Dryas iulia - Flambeau
        • Eueides isabella - Isabella's Heliconian
        • Euptoieta claudia - Variegated Fritillary
        • Euptoieta hegesia - Mexican Fritillary
        • Heliconius charithonia - Zebra Heliconian
      • Nymphalidae : Libytheinae >
        • Libytheana carinenta - American Snout
        • Libytheana motya - Cuban Snout
        • Libytheana terena - Antillean Snout
      • Nymphalidae Limenitinae >
        • Adelpha iphicleola - Iphicleola Sister
        • Limenitis archippus - Viceroy
      • Nymphalidae : Nymphalinae >
        • Anartia chrysopelea - Cuban Peacock
        • Anartia jatrophae - White Peacock
        • Anthanassa frisia - Cuban Crescent
        • Antillea pelops - Antillean Crescent
        • Atlantea perezi - Cuban Checkerspot
        • Colobura dirce - Mosaic
        • Historis acheronta - Tailed Cecropian
        • Historis odius - Stinky Leafwing
        • Hypanartia paullus - Antillean Mapwing
        • Hypolimnas misippus - The Mimic
        • Junonia coenia - Common Buckeye
        • Junonia neildi - Mangrove Buckeye
        • Junonia zonalis - Tropical Buckeye
        • Phyciodes phaon - Phaon Crescent
        • Polygonia interrogationis - Question Mark
        • Siproeta stelenes - Malachite
        • Vanessa atalanta - Red Admiral
        • Vanessa cardui - Painted Lady
        • Vanessa virginiensis - American Lady
      • Nymphalidae : Satyrinae >
        • Calisto aquilum - Cuban Dark Calisto
        • Calisto bradleyi - Bradley's Calisto
        • Calisto brochei - Broche's Calisto
        • Calisto bruneri - Bruner's Calisto
        • Calisto disjunctus - Western Cuban Calisto
        • Calisto dissimulatum - Mimic Calisto
        • Calisto gundlachi - Gandlach's Calisto
        • Calisto herophile - Cuban Common Calisto
        • Calisto israeli - Israel's Calisto
        • Calisto lastrai - Lastra's Calisto
        • Calisto muripetens - Guamuahaya Calisto
        • Calisto occulta - Hidden Calisto
        • Calisto sharkeyae - Sharkey's Calisto
        • Calisto siguanensis - Sand Calisto
        • Calisto smintheus - Cuban Rusty Calisto
        • Calisto torrei - Torre's Calisto
    • Download Species List
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      • Papilionidae - Swallowtails
      • Hesperiidae - Skippers
      • Pieridae - Whites & Yellows
      • Riodinidae / Lycaenidae - Metalmarks, Hairstreaks & Blues
      • Nymphalidae - Nymphalids
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Cuban Giant Owl - Ornimegalonyx oteroi

10/10/2022

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Picture
While we were in Cuba in August we went to visit Carlos A. Mancina in Habana. He is Director of the Institute of Ecology and Systematics in Habana. On the wall of their flat was this wonderful painting of a Cuban Giant Owl. No you won't find it in the Field Guide as it is long extinct. It was painted by his good friend Raimundo Lopez-Silvero in 2020.
Carlos had generously retained some copies of a new book published earlier this year (for which he is the lead author) called Mariposas de Cuba, Guía de Campo. Douglas Fernandez had written a chapter and I had also contributed a little. This is the first Field Guide to be written on the Butterflies of Cuba and although a few hard copies were printed the main advantage of the book is that it is available as a free pdf. It was produced with the purpose of raising awareness and as a leaning aid for the population of Cuba.
Picture
Tim Norriss, Douglas Fernandez and Carlos Mancina
But - back to the Owl. The Cuban Giant Owl or Giant Cursorial Owl is an extinct genus of giant owl that measured around 1.1 metres in height. It is closely related to the many species of living owls of the genus Strix. It was a flightless or nearly flightless bird, and therefore largely terrestrial,  and is believed to be the largest owl that has ever existed. It lived solely on the island of Cuba.

The first fossil specimen was mistakenly described as a bird in the family Phorusrhacidae, in part because the bones were so large. Birds in this family, colloquially known as terror birds, are an extinct clade of large carnivorous flightless birds that were one of the largest species of apex predators in South America during the Cenozoic era; their conventionally accepted temporal range covers from 62 to 0.1 million years (Ma) ago.  In 1961, Pierce Brodkorb reviewed the fossil remains and placed them properly, with the owls. Remains have been found to be abundant throughout the island, in cave deposits from the Late Pleistocene period (126,000 to 11,700 years ago) and at least three nearly complete skeletons have been found.

Arredondo estimated the height of Ornimegalonyx to have been 1.1 metres tall and it probably easily exceeded 9 kilograms. It had very long legs for its size, but was bulky overall and probably short-tailed. The modern-day owl that most resembles the Cuban Giant Owl in proportions is probably the small long-legged Burrowing Owl which is found throughout the open landscapes of North and South America. It is the only surviving owl that is very largely terrestrial. This implies similar adaptations to the terrestrial lifestyle, but not a close phylogenetic relationship.

One of the largest living owls, the Eurasian eagle owl (Bubo bubo), reaches 4 kg in weight, and Peters has reported them taking roe deer fawns that weigh 17 kg as prey. The legs and feet of the Cuban Giant Owl also appear to be very large and powerful. This supports the theory that they were strong runners, hence the alternative name, cursorial. The keel of the sternum was reduced and the owl may have been capable of a short burst of flight.
The Cuban Giant Owl is believed to have preyed principally on large Jutias (still extant today), including Capromys, Geocapromys, and Macrocapromys (the latter being the size of a modern capybara) and the ground sloths Cubanocnus, Miocnus, Mesocnus, and Megalocnus. It was probably an ambush predator that would pounce on unsuspecting prey with its crushing talons.
Picture
Caguanes National Park © Aslam I. Castellón Maure
On October 10, 1986, members of the Cayo Barien speleology group, of the Cuban Speleological Society, found the most complete remains known to date. Alejandro Morffis González, president of the Caibarién speleology Group at the time, recalls that the finding occurred in the Humboldt Cave, in the Cayo Caguanes National Park, located on the north coast of the province of Sancti Spiritus.
Carlos Mirabal, member of the group, found the first bone of this prehistoric Cuban bird, and then continued the search finding several more bone remains including the skull, beak and the claws.
The prominent paleontologist Oscar Arredondo de la Mata identified the bone remains and determined that they belonged to two different specimens of this extinct species.
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