[obol] Sparrow comparison - answers
- From: "Paul Sullivan" <paultsullivan@xxxxxxxxxxxx>
- To: <obol@xxxxxxxxxxxxx>, <cobol@xxxxxxxxxxxxxxxxxxxxx>, <birding@xxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 13 Mar 2015 18:16:20 -0700
Here's the answer to the sparrow comparison, as per Sibley:
10.5 gms Brewer's Sparrow
12 gms Chipping Sparrow
17 gms Lincoln's Sparrow
19 gms Dark-eyed Junco
20 gms Song Sparrow
20 gms Savannah Sparrow
20 gms Am. Tree Sparrow
26 gms Vesper Sparrow
26 gms White-throated Sparrow
29 gms White-crowned Sparrow
29 gms Golden-crowned Sparrow
32 gms Fox Sparrow
36 gms Harris' Sparrow
The comparison that got me started on this was the Song vs. Fox comparison.
The Song is 2/3 the heft of a Fox Sparrow.
Good birding,
Paul
From: Paul Sullivan [mailto:paultsullivan@xxxxxxxxxxxx]
Sent: Thursday, March 12, 2015 4:06 PM
To: obol@xxxxxxxxxxxxx; cobol@xxxxxxxxxxxxxxxxxxxxx;
birding@xxxxxxxxxxxxxxxxxxxx
Cc: birding-neoregon-group@xxxxxxx; carolk@xxxxxxxxxxx
Subject: Sparrow comparison
Looking at sparrows below our backyard feeders the other day, I was struck
by a size difference that surprised me. It led me to Sibley's Guide.
Here's a list of some of our sparrows:
Golden-crowned Sparrow
White-crowned Sparrow
Fox Sparrow
Song Sparrow
Savannah Sparrow
Am. Tree Sparrow
Harris Sparrow
Vesper Sparrow
Chipping Sparrow
Brewer's Sparrow
Lincoln's Sparrow
Dark-eyed Junco
White-throated Sparrow
And here's a list of their weights in grams (as per Sibley)
10.5 gms
12 gms
17 gms
19 gms
20 gms
20 gms
20 gms
26 gms
26 gms
29 gms
29 gms
32 gms
36 gms
There's more than a three-fold difference in weight across this group. Can
you match the birds in order of their size?
Paul
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