The Collaborative International Dictionary of English v.0.48:

Snowbird \Snow"bird\, n. (Zool.)
   (a) An arctic finch (Plectrophenax nivalis syn.
       Plectrophanes nivalis) common, in winter, both in
       Europe and the United States, and often appearing in
       large flocks during snowstorms. It is partially white,
       but variously marked with chestnut and brown. Called also
       snow bunting, snowflake, snowfleck, and
       snowflight.
   (b) Any finch of the genus Junco which appears in flocks in
       winter time, especially Junco hyemalis in the Eastern
       United States; -- called also blue snowbird. See
       Junco.
   (c) The fieldfare. [Prov. Eng.]
       [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Snowflake \Snow"flake`\, n.
   1. A flake, or small filmy mass, of snow.
      [1913 Webster]

   2. (Zool.) See Snowbird, 1.
      [1913 Webster]

   3. (Bot.) A name given to several bulbous plants of the genus
      Leucoium (Leucoium vernum, Leucoium aestivum, etc.)
      resembling the snowdrop, but having all the perianth
      leaves of equal size.
      [1913 Webster]

WordNet (r) 3.0 (2006):

snowflake
    n 1: a crystal of snow [syn: snowflake, flake]
    2: white Arctic bunting [syn: snow bunting, snowbird,
       snowflake, Plectrophenax nivalis]

Moby Thesaurus II by Grady Ward, 1.0:

39 Moby Thesaurus words for "snowflake":
   avalanche, blizzard, crystal, driven snow, flake, flurry,
   granular snow, igloo, mantle of snow, mogul, slosh, slush, snow,
   snow banner, snow bed, snow blanket, snow blast, snow fence,
   snow flurry, snow roller, snow slush, snow squall, snow wreath,
   snow-crystal, snowball, snowbank, snowbridge, snowcap, snowdrift,
   snowfall, snowfield, snowland, snowman, snowscape, snowshed,
   snowslide, snowslip, snowstorm, wet snow



U.S. Gazetteer Places (2000):

Snowflake, AZ -- U.S. town in Arizona
   Population (2000):    4460
   Housing Units (2000): 1536
   Land area (2000):     30.807270 sq. miles (79.790459 sq. km)
   Water area (2000):    0.052093 sq. miles (0.134919 sq. km)
   Total area (2000):    30.859363 sq. miles (79.925378 sq. km)
   FIPS code:            67800
   Located within:       Arizona (AZ), FIPS 04
   Location:             34.511187 N, 110.082974 W
   ZIP Codes (1990):     85937
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Snowflake, AZ
    Snowflake