Singing Birds, Northwood   Updated 4/23/2008
Singing Birds differs from Imperial's Robin in that the birds here are framed by panels. Northwood's own Springtime pattern was made in some of the same shapes as Singing Birds and has some of the same features--including the panels. If it has a butterfly and basketweave around the bottom, it's Springtime. Note that reproduced Singing Birds tumblers have been found in amethyst, aqua opal, cobalt and ice green.
Water sets, 7 piece

Amethyst/purple, 450, 750 (both 2000), 950 (2001),
   625 (2003), 325 (2006), 550 (2008)

Green, 600, 650, 850 (all 2005), 550, 725, 800 (all 2006),
   700 (2007)

Green, 5 piece, 900 (2006)

Green, 6 piece, 625 (2004)

Green, emerald, 1,700 (1994)

Marigold, 525 (2000), 275 (2001), 650 (2002),
   345, 500 (both 2006), 325 (2007)

Water pitchers

Amethyst/purple, 375, 600 (both 2004), 225, 300, 800 (all 2005),
   275 (2007), 550 (2008)

Amethyst, with 1 tumbler, 375 (2006)

Green, 425, 525 (both 2003), 850 (2004),
   425, 475, 625, 700 (both 2006), 375 (2007)

Green, emerald, 1,300 (2004), 7,500 (2006)

Marigold, 275 (2000), 500 (2001), 400 (2004), 450 (2005),
   180, 250, 450 (all 2005), 225, 475 (both 2007)

Olive green known

Tumblers

Amber known

Amethyst/purple, 60 (2006), 15, 33 (both 2007),
   25 (2008)

Green, 20, 25, 35, 45, 75 (all 2007), 23, 30 (both 2008)

Green, emerald, 125 (2002)

Lime green, 175 (2001)

Marigold, 45 (2004), 35 (2005),
   35, 45 (both 2007), 25, 30 (both 2008)

Olive green, 43 (2002)

Smoke, scarce

Teal, 35, 90 (both 2003)
Mugs are the most often seen shape in this pattern. There are two versions, one without stippling (left) and one with stippling (right). Similar to Robin mugs, but this one has the birds displayed on panels.
Mugs, unstippled

Amber, 300 (1995), 350 (2003)

Amethyst/purple, 40-75

Amethyst/purple, paper label "The Crown Mft, Co. N.Y.,"
   145 (2006)

Amethyst, swirl effect, 275 (1995)

Aqua opal, 950, 1,050 (both 2005),
   675, 700, 775, 1,100, 1,500 (all 2006),
   600, 775, 1,050 (all 2007)

Blue, 75-150

Blue, electric, 475 (2007)

Custard, nutmeg, 100, 110 (both 2007)

Green, 195 (2005), 80, 85, 90, 130 (all 2006),
   33, 85, 155, 210 (all 2007), 250 (2008)

Horehound, 225, 400 (both 2002), 350 (2003)

Ice blue, 450 (2002), 550 (2003), 425, 525 (both 2004),
   510 (2005), 225 (2007), 275 (2008)

Lavender, 160 (2005), 55, 75, 90, 100 (all 2006),
   50, 60, 115, 425 (all 2007), 55 (2008)

Marigold, 25-45

Purple, Amazon Hotel advertising, 140 (1999),
   135 (2007)

Purple, Hotel Vendome advertising, 300 (2000)

Renninger blue, 950 (1999)

Sapphire blue, 1,500 (1999), 1,800 (2001)

Sapphire blue, base crack, 850 (2004)

Smoke, rare

Teal (or sapphire), 1,000 (2002)

White, 700 (2003), 500 (2005), 420, 450 (both 2006),
   200, 380, 675 (all 2007), 250, 400 (both 2008) 		Mugs, stippled

Amethyst, base chip, 115 (2007)

Blue, 200 (1999), 325, 400 (both 2002),
   550 (2004), 525 (2005), 375, 450 (both 2007)

Blue, electric, 850 (2003)

Blue opal, 1,450 (2002), 500 (2004)

Green, 375, 450 (both 1999),
   250, 300 (both 2006), 200, 280 (both 2007)

Marigold, 50, 80 ,85 (all 2003), 65 (2004),
   65 (2005), 35, 45, 50, 55, 105 (all 2006),
   43, 50, 165, 200 (all 2007), 20 (2008)

Renninger blue, 1,500 (1997), 950 (1999)

Sapphire, 550 (2002)
Bowls are rather difficult to find in this pattern and the large ones as shown here are particularly scarce.
Berry sets

Green, 7 pieces, 300 (1998), 400 (2001)

Green, 5 pieces, 400 (2004)

Marigold, 5 pieces, 150 (2002), 127 (eBay 2005)

Purple, 6 pieces, 210 (2003)

Large berry bowls

Green, 200 (2007)

Marigold, 55 (2005)

Marigold, 10 inches, ice cream shape, 600 (1998)

Purple, 275 (2000)

Small berry bowl or sauce

Blue, 80 (2001)

Green, 45 (2000), 25 (2004), 25 (2005), 30 (2007)

Green, emerald, 105 (2006)

Purple, 60 (2004)

Table sets, 4 pieces

Green, 525 (2001)

Marigold, 500 (2000), 425 (2005), 1,100 (2007)

Purple, 1,650 (2007)

Butter dishes, covered

Green, 425 (2000)

Marigold, 145 (2000), 145 (2003)

Purple, 250 (1996)

Creamers

Amethyst/purple, 102 (eBay 2005)

Green, 75 (2006), 65, 135 (both 2007)

Marigold, 100 (1999)

Spooners

Amethyst/purple, 188 (eBay 2005)

Green, 300 (2002)

Marigold, 125 (2000), 250 (2002)

Purple, 250 (2002)

Sugar bowls, covered

Marigold, 190 (1999)

Purple, 75 (1996)

Whimsey creamer, from mug

Marigold, 775 (2008)