Today is Monday, September 01, 2014

Species Spotlight for Tundra Swan

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Status of Tundra Swan in Missouri:
WR r


Seasonal Status:
PR
--permanent resident; some individuals present year round.
SR--summer resident; a breeder, between 1 June and 31 July.
SV
--summer visitor; a non-breeder.
WR--winter resident; between 15 December and 20 February.
WV
--winter visitor; usually present for only a short period of the winter.
T
--transient in spring and/or fall.

Abundance Status: The abundance status of each species is based on observation in the appropriate habitat(s). Sporadic = numbers fluctuate significantly among years. Transient status is not indicated for summer, winter, or permanent residents unless the transient status is different.

c common or abundant; observed daily, usually in large numbers
u uncommon; frequently observed, usually in small numbers
r rare; more than 15 records; usually observed annually
ca casual; 5-15 records; occasionally observed
a accidental; 1-4 records; a vagrant
[  ] provisional; one or more records that meet acceptance criteria, but no definitive state record (i.e., either specimen, diagnostic photograph or audio, or multiple acceptable documentations)
* species formerly occurring in Missouri; now extirpated
# species formerly occurring in Missouri; now extinct


Distribution in Missouri: Letters in parentheses (n, sw, e, etc.) indicate the section of Missouri where the species has been primarily recorded. No letters in parentheses indicate that a species is widespread throughout the state. Miss. R. = Mississippi River. Mo. R. = Missouri River.

Note: Taxonomy and nomenclature follow the American Ornithologists' Union Checklist of North American Birds (1998) and subsequent supplements. The current AOU Checklist is available at http://www.aou.org/checklist/north/.