Friday, October 19, 2018

October 16, 2018

We are continuing to band with Dr Ed Rykiel and today we banded at the Amon Creek Natural Preserve.  This area is slowly being surrounded by housing and may not withstand the onslaught.  However, we did have our best day banding there and the birds were very active.  We banded the expected sparrows:  White-crowned (15) and Song (4) Sparrows.  The photos of the White-crowns will get you ready for our own upcoming project.  Mature birds (not born this past breeding season) have black and white stripes.  Immature birds' stripes are more buffy and brown.  Very easy to age until next spring when the White-crowns molt and all ages become black and white striped. 

adult White-crowned Sparrow
Photo by Bill LaFramboise

hatch-year White-crowned Sparrow
Photo by Bill LaFramboise

We also caught quite a few Yellow-rumped Warblers (21).  We enjoyed the challenge of trying to age and sex them.  These are the Audubon subspecies of Yellow-rumps.  The yellow throat is the obvious difference from the Myrtle Yellow-rumps we banded in Florida.  Also note the lack of eye stripe that Myrtle has.

Audubon's race of Yellow-rumped Warbler
Photo by Bill LaFramboise

Always a pleasure to catch and band are the kinglets.  They are so small it is amazing to hold them.  We caught 2 Ruby-crowned Kinglets.  The first one was female and lacks the hidden ruby feathers.  The second one was a male with a brilliantly colored crown.

Ruby-crowned Kinglet
Photo by Bill LaFramboise

We also banded an American Robin, an American Goldfinch, and 2 House Finches.  We will continue to band with Dr Rykiel but the good news is that by the end of today our color bands should arrive and we will start banding on October 18.  Let's see what we learn.

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