This is a variant of GD54, the moe bird. There are more such birds in c, but their distribution is somewhat complex:

1c                  
2c                    
3c                  
4c                
5c                    
6c                
These glyphs are of three different kinds, two of each, totally six moe birds. My impression is that we have three different stages: normal moe (e.g. the last one in 6c), exceedingly moe, look at the crooked beak, (e.g. 1c), and totally dead bird, head in darkness, (e.g. 3c).
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