Side by side compare - American Tree Sparrow
	
	   
	
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	American Tree Sparrow | 
	SY/FCU-U Mar 16 NA_1489 | 
	| Age: Second_year | 
	Molt class: FCU- First Unknown Plumage | 
	| Sex: Unknown | 
	Contributor: Lauren Granger | 
	| Date: 2016 Mar 16 | 
	Location: USA, PA,Powdermill Avian Research Center | 
 
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		Image #3913; Side (Contributed)
		
File # 127951
	 
	
		Photographer: Lauren Granger
 
 
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