Veery

The veery (Catharus fuscescens) is a small North American thrush species, a member of a group of closely related and similar species in the genus Catharus, also including the gray-cheeked thrush (C. minimus), Bicknell's thrush (C. bicknelli), Swainson's thrush (C. ustulatus), and hermit thrush (C. guttatus).[2][3] Alternate names for this species include Wilson's thrush (named so after Alexander Wilson[4]) and tawny thrush.[5] Up to six subspecies exist, which are grouped into the eastern veery (C. fuscescens fuscescens), the western veery or willow thrush (C. fuscescens salicicolus), and the Newfoundland veery (C. fuscescens fuliginosus).[6]

Veery
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Class: Aves
Order: Passeriformes
Family: Turdidae
Genus: Catharus
Species:
C. fuscescens
Binomial name
Catharus fuscescens
(Stephens, 1817)
Veery range
  Breeding range
  Wintering range
Synonyms

Hylocichla fuscescens

The specific name fuscescens is Neo-Latin for "blackish", from Latin fuscus, "dark".[7] The English name may imitate the call.[8]

Description
Juvenile, banded near Montreal, Quebec, Canada

This species measures 16–19.5 cm (6.3–7.7 in) in length. Its mass is 26–39 g (0.92–1.38 oz), exceptionally up to 54 g (1.9 oz). The wingspan averages 28.5 cm (11.2 in).[9] Each wing measures 8.9–10.4 cm (3.5–4.1 in), the bill measures 1.2–1.9 cm (0.47–0.75 in) and the tarsus is 2.7–3.25 cm (1.06–1.28 in).[10] The veery shows the characteristic under-wing stripe of Catharus thrushes. Adults are mainly light brown on the upperparts. The underparts are white; the breast is light tawny with faint brownish spots. Veeries have pink legs and a poorly defined eye ring. Birds in the eastern portions of the species' breeding range are more cinnamon on the upper parts; western birds are more olive-brown. In the east, the veery is distinguished easily by its coloration; distinguishing western veeries from other Catharus thrushes is more difficult.[11]

This bird has a breezy, downward-spiraling, flute-like song, often given from a low and concealed perch. The most common call is a harsh, descending vee-er, which gave the bird its name. Other calls include a chuckle, a sharp and low "wuck", and a slow wee-u.[12] Veeries have been shown to decrease the rate and duration of singing when exposed to barred owl playback, possibly to decrease the chance of predation.[13]

Ecology and behavior

Breeding and wintering habitat

The breeding habitat is humid deciduous forest across southern Canada and the northern United States. Breeding habitat includes dense growth and dense understory close to a water source, such as a stream.[14] These birds migrate to eastern South America. It has been found that winter range may include the entire Amazon basin, Mérida state in Venezuela, the headwaters of the Orinoco River, and São Paulo state, Brazil.[15] Stopover regions during migration of several veeries from Delaware include the coast of the Gulf of Mexico, the coasts of the Carolinas, Cuba, Jamaica, Colombia, and Venezuela.[15] They are very rare vagrants to western Europe.

Feeding

They forage on the forest floor, flipping leaves to uncover insects; they may fly up to catch insects in flight. They mainly eat insects and berries. Insects are a main food source during the breeding season, while fruit and berries may compose most of the diet during the late summer and fall.[14]

Nesting

They make a cup nest on the ground or near the base of a shrub. The nest consists of three structural layers, including outer, inner, and nest lining layers.[16] The outer layer consists of leaves and supporting branches, while the inner layer consists of material woven together.[16] Nest lining consists of flexible material such as bark, roots, and seeds.[16] The use of different parts of 27 plant species, including invasive/alien plants, has been documented.[16] Nests contain three to five greenish-blue eggs that may or may not have brown spots.[14] The eggs are incubated for 10 to 14 days by the female, while both parents feed nestlings.[14] Young Veeries can leave the nest between 10 and 12 days after they hatch.[14]

This bird has been displaced in some parts of its range by the related wood thrush (Hylocichla mustelina). However, a case of interspecific parental care of a veery nest by a wood thrush has been documented in which a wood thrush provided more parental care to the veery nestlings than did the parents, possibly due to sexual solicitation by the female veery.[17] Veeries are occasional hosts for the eggs of brown-headed cowbirds (Molothrus ater). Veery males have been found to engage in behaviors similar to the polygynandrous Bicknell's thrush in that males may feed nestlings at more than one nest and there may be multiple male feeders at nests.[18][19]

Threats

Threats to the veery include nest parasitism by brown-headed cowbirds, climate change, and alteration of Amazonian lowland forests.[14][15] It is suggested that veeries are in decline, and breeding bird survey trend results indicate that veery populations declined across most of its range from 1966 to 2013.[14][20] There have been concerns that the use of invasive/alien plant parts may decrease nesting success, but negative impacts have not been documented.[16] Other potential threats include the loss of woodland habitat, squirrels, chipmunks, and raptors.[21]

Footnotes
  1. BirdLife International (2018). "Catharus fuscescens". IUCN Red List of Threatened Species. 2018: e.T22708655A131949838. doi:10.2305/IUCN.UK.2018-2.RLTS.T22708655A131949838.en. Retrieved 11 November 2021.
  2. Winker & Pruett (2006)
  3. "Thrushes". All About Birds. The Cornell Lab of Ornithology. Retrieved 2 March 2016.
  4. "Wilson's thrush". American Heritage Dictionary of the English Language, 4th edition. Retrieved 2015-03-19.
  5. "John J. Audubon's Birds of America". 2014-11-25.
  6. ""Newfoundland" Veery | Rouge River Bird Observatory". www.rrbo.org. Retrieved 2016-03-02.
  7. Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp. 167. ISBN 978-1-4081-2501-4.
  8. "Veery". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  9. "Veery".
  10. Thrushes by Peter Clement. Princeton University Press (2001), ISBN 978-0691088525 pp. 305–7.
  11. "Veery".
  12. Alderfer, Jonathan (2006). National Geographic Field Guide to Birds: Pennsylvania. Washington, D.C.: National Geographic Books. p. 179.
  13. Schmidt, Kenneth A.; Belinsky, Kara Loeb (July 30, 2013). "Voices in the dark: predation risk by owls influences dusk singing in a diurnal passerine". Behavioral Ecology and Sociobiology. 67 (11): 1837–1843. doi:10.1007/s00265-013-1593-7. ISSN 0340-5443. S2CID 9805378.
  14. "Veery". Audubon. November 13, 2014. Retrieved March 2, 2016.
  15. Heckscher, Christopher M.; Taylor, Syrena M.; Fox, James W.; Afanasyev, Vsevolod (2011). "Veery (Catharus fuscescens) Wintering Locations, Migratory Connectivity, and a Revision of its Winter Range Using Geolocator Technology". The Auk. 128 (3): 531–542. doi:10.1525/auk.2011.10280. S2CID 86528448.
  16. Heckscher, Christopher M.; Taylor, Syrena M.; Sun, Catherine C. (January 1, 2014). "Veery (Catharus fuscescens) Nest Architecture and the Use of Alien Plant Parts". The American Midland Naturalist. 171 (1): 157–164. doi:10.1674/0003-0031-171.1.157. ISSN 0003-0031. S2CID 85096180.
  17. Halley, Matthew R.; Heckscher, Christopher M. (December 1, 2013). "Interspecific Parental Care by a Wood Thrush (Hylocichla mustelina) at a Nest of the Veery (Catharus fuscescens)". The Wilson Journal of Ornithology. 125 (4): 823–828. doi:10.1676/13-048.1. ISSN 1559-4491. S2CID 86166074.
  18. Halley, Matthew R.; Heckscher, Christopher M. (June 1, 2012). "Multiple Male Feeders at Nests of the Veery". The Wilson Journal of Ornithology. 124 (2): 396–399. doi:10.1676/11-120.1. ISSN 1559-4491. S2CID 86219388.
  19. Goetz, James E.; McFarland, Kent P.; Rimmer, Christopher C.; Murphy, M. T. (October 1, 2003). "Multiple paternity and multiple male feeders in Bicknell's thrush (catharus bicknelli)". The Auk. 120 (4): 1044–1053. doi:10.1642/0004-8038(2003)120[1044:MPAMMF]2.0.CO;2. ISSN 0004-8038. S2CID 85965468.
  20. "Patuxent Bird Identification and Breeding Bird Survey Results". www.mbr-pwrc.usgs.gov. Retrieved March 3, 2016.
  21. "Illinois Natural History Survey Veery". wwx.inhs.illinois.edu. Retrieved March 2, 2016.

References
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