Animalia > Chordata > Aves > Strigiformes > Strigidae > Glaucidium californicum > Glaucidium californicum californicum

Glaucidium californicum californicum (Northern Pygmy Owl)

Synonyms: Glaucidium gnoma californicum

EDGE Analysis

Uniqueness Scale: Similiar (0) 
3
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
20
 Unique & Vulnerable (100)
ED Score: 6.73685
EDGE Score: 2.04599

Attributes

Adult Weight [1]  67 grams
Female Weight [3]  73 grams
Male Weight [3]  62 grams
Weight Dimorphism [3]  17.7 %
Diet [2]  Carnivore (Invertebrates), Carnivore (Vertebrates)
Diet - Ectothermic [2]  10 %
Diet - Endothermic [2]  50 %
Diet - Invertibrates [2]  40 %
Forages - Understory [2]  10 %
Forages - Ground [2]  90 %
Clutch Size [5]  4
Clutches / Year [1]  1
Fledging [1]  28 days
Incubation [4]  29 days
Nocturnal [2]  Yes
Raptor Research Conservation Priority [6]  79
Snout to Vent Length [1]  7 inches (17 cm)

Protected Areas

Prey / Diet

Callipepla californica (Californian Quail)[4]
Passer domesticus (House Sparrow)[4]
Turdus migratorius (American Robin)[4]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Asio otus (Long-eared Owl)1
Buteo jamaicensis (Red-tailed Hawk)1
Glaucidium gnoma (Northern Pygmy-Owl)1
Megascops kennicottii (Western Screech-Owl)1
Strix varia (Barred Owl)1

External References

Citations

Attributes / relations provided by
1Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109
2Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
3Earhart, CM and Johnson, NK 1970. Size dimorphism and food habits of North American owls Condor 72: 251-264
4del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
5de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
6Buechley ER, Santangeli A, Girardello M, et al. Global raptor research and conservation priorities: Tropical raptors fall prey to knowledge gaps. Divers Distrib. 2019;25:856–869. https://doi.org/10.1111/ddi.12901
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0