... Aegolius ridgwayi ( Alfaro ) 1905 • Unspotted Saw - whet Owl Ridgwaykauz⚫ Chouette de Ridgway ( Nyctale immaculée ) · Tecolote abetero Sureno Cryptoglaux ridgwayi Alfaro 1905 , Proc . Biol . Soc . Wash . 18 : 217 ; Terra typica : Cerro ...
... Aegolius ridgwayi. In IUCN Red List of Threatened Species, version 2014.3, http://www .iucnredlist.org/details/22689371/0. Blancher et al. 2013. Briggs 1954. Butchart, S., and J. Ekstrom. Southern saw-whet owl Aegolius ridgwayi ...
... Aegolius Aegolius funereus Boreal Owl N, C and SE Europe to Ural Mts. (Russia) Linnaeus, 1758 Aegolius funereus ... ridgwayi Unspotted Saw-whet Owl Costa Rica and W Panama Alfaro, 1905 Aegolius ridgwayi tacanensis ...
... Aegolius funereus ; it is white below with reddish streaks and a streaky - looking reddish face without a dark ruff . Note the white spots on the scapulars . New York , USA , March ... Aegolius ridgwayi L 18–20cm, Wt c. Forest owls 445.
... Aegolius ridgwayi , or the ferruginous pygmy owl , Glaucidium gnoma kuxkux , identified as the ferrugi- nous pygmy owl ahk ' ubal toytoy , the northern pygmy owl , Glaucidium gnoma ; also the unspotted saw - whet owl , Aegolius ...
... Aegolius harrisii 21 Buff - fronted Owl Argentina , Bolivia , Brazil , Colombia , Ecuador , Paraguay , Peru , Venezuela Aegolius ridgwayi 21 Unspotted Saw - whet Owl Costa Rica , El Salvador , Guatemala , Mexico Bubo nipalensis 21 Spot ...
... Aegolius ridgwayi, Table 15.2). These were realized in Tlaxcala, Hidalgo, Chihuahua, Durango, Chiapas, and Morelos, among others. The study areas have been very local and are generally done in protected natural areas like biosphere ...
... Aegolius ridgwayi, and the buff-fronted owl A. harrisii. All of these are smaller than boreal owls and occur in the New World only. Saw-whet owls range throughout boreal and temperate forest belts in Canada and Alaska, but their range ...
... Aegolius acadicus See E , W , or T Memo : Small , earless ; broad brown streaks below . Immature chocolate - brown ... ridgwayi 7-72 Pl . 16 Field marks : A small tuftless owl , differing from the Northern Saw - whet and all other ...
... Aegolius acadicus Northern saw - whet owl Tecolotito cabezón , Lechucita cabezona 33 4626 . Aegolius ridgwayi - Unspotted saw - whet owl ( 4613-4625 ) 39.