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is its only remaining natural predator. Medium tree finches generally lay two to three eggs. Eggs are incubated for approximately 12 days, and nestlings are fed by both parents at the nest for approximately 14 days before becoming fledglings.
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O’Connor JA, Sulloway FJ, Kleindorfer S (2010). Avian population survey in the
Floreana highlands: Is Darwin's medium tree finch declining in remnant patches of Scalesia forest?
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is roughly the same. This reflects the fact that the two species feed on the same type and size of insect. The beak of the medium tree finch is intermediate in size between the
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is a significant threat to the survival of this species. Parasitic larvae of this fly live in the nest material and feed on the blood and body tissues of nestlings.
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277:. Because it has a very small range on a single island, and because of the introduction of a parasitic fly which kills the nestlings, the
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causes high nestling mortality in the medium tree finch. Because of this, and because it has a very small range on a single island, the
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parasitism is the primary cause of nestling mortality in the critically endangered Darwin's medium tree finch (
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at elevations above 250 meters in moist highland forest habitats. Prime breeding habitat is dominated by
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269:. Its name is derived from the fact that the bird's beak is intermediate in size between that of the
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The medium tree finch is threatened by introduced predators such as rats, mice, cats and the
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and large tree finch. All three species are found in the same habitat country and area.
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The range of beak sizes of the medium tree finch on
Floreana and the
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O’Connor JA, Sulloway FJ, Robertson J, Kleindorfer S (2010).
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415:10.2305/IUCN.UK.2018-2.RLTS.T22723773A130488958.en
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364:International Union for Conservation of Nature
279:International Union for Conservation of Nature
791:IUCN Red List critically endangered species
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801:Endemic birds of the Galápagos Islands
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366:has rated the medium tree finch as "
281:has rated the medium tree finch as "
401:IUCN Red List of Threatened Species
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822:
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436:Bird Conservation International.
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390:BirdLife International (2018).
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457:Biodiversity and Conservation.
293:This species is only found on
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811:Taxa named by Robert Ridgway
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477:BirdLife Species Factsheet.
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265:where it is only found on
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465:10.1007/s10531-009-9740-1
443:10.1017/S0959270910000195
408:: e.T22723773A130488958.
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75:Scientific classification
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806:Birds described in 1890
326:Camarhynchus psittacula
312:The diurnal Galapagos
750:Paleobiology Database
368:critically endangered
283:critically endangered
237:critically endangered
60:Critically Endangered
768:Camarhynchus-pauper
553:camarhynchus-pauper
540:Camarhynchus_pauper
526:Camarhynchus pauper
496:Camarhynchus pauper
453:Camarhynchus pauper
232:Camarhynchus pauper
184:Camarhynchus pauper
45:Conservation status
24:Medium tree finch
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737:Open Tree of Life
488:Taxon identifiers
346:smooth-billed ani
263:Galápagos Islands
227:medium tree finch
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449:Philornis downsi
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355:Philornis downsi
334:small tree finch
322:large tree finch
275:large tree finch
271:small tree finch
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394:Geospiza pauper
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314:short-eared owl
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295:Floreana Island
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267:Floreana Island
217:Geospiza pauper
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16:Species of bird
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132:Passeriformes
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796:Camarhynchus
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419:. Retrieved
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289:Distribution
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153:Camarhynchus
152:
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711:Neotropical
646:iNaturalist
520:Wikispecies
302:pedunculata
239:species of
785:Categories
763:Xeno-canto
374:References
255:Thraupidae
142:Thraupidae
360:P. downsi
160:Species:
98:Kingdom:
92:Eukaryota
664:10592311
511:Q1125857
505:Wikidata
300:Scalesia
273:and the
257:. It is
209:Synonyms
138:Family:
112:Chordata
108:Phylum:
102:Animalia
88:Domain:
65:IUCN 3.1
716:metfin1
638:2491674
625:1050310
602:metfin1
576:metfin1
561:Avibase
330:Isabela
308:Ecology
304:trees.
261:to the
259:endemic
249:tanager
243:in the
235:) is a
191:Ridgway
148:Genus:
128:Order:
118:Class:
63: (
755:371390
742:422530
690:559005
609:ECOS:
548:ARKive
421:16 May
340:Status
252:family
193:, 1890
729:79038
703:93066
677:90150
659:IRMNG
597:eBird
573:BOW:
328:, on
38:male
698:NCBI
685:ITIS
651:9475
633:GBIF
612:7641
589:Q8FB
423:2024
406:2018
241:bird
225:The
122:Aves
672:ISC
620:EoL
584:CoL
535:ADW
461:doi
455:).
439:doi
410:doi
370:".
285:".
787::
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404:.
398:.
382:^
324:,
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396:"
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229:(
67:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
