|Male Golden-crowned Kinglet|
Sparrows have similar field markings but yet are so different. Having birds in the hand offers an opportunity to see what makes up the field mark as well as making size comparisons. Below are two sparrows with breast streaking, where one of the field marks is a dark spot in the center of its chest (Song Sparrow-SOSP) and the other with similar chest markings, but how the streaks come together on the breast do not make a "spot" (Fox Sparrow-FOSP).
|SOSP and FOSP: See any "spot" on the SOSP?|
Just a series of streaks coming together to form a "spot"
|SOSP and FOSP: note bill coloration on both|
|Backs of the SOSP and FOSP: Note reddish tail of FOSP|
White-throated (WTSP) and White-crowned (WCSP).
|Generally WCSP are slightly larger than the WTSP|
that are very beautiful.
|Top: WCSP (HY bird)|
|FOSP (L) and WCSP (R) |
Note growth bars on the tail of the FOSP depicting symmetrical molt of retrices.