Now on ScienceBlogs: Oldest Human-Made Object in Space

ScienceBlogs Book Club: Inside the Outbreaks

Living the Scientific Life (Scientist, Interrupted)

Written by an evolutionary biologist/ornithologist who writes about E3 -- Evolution, Ecology and Ethology -- and the subtle relationships between these phenomena, especially in birds.

GrrlScientist Tweets:

GrrlScientist's New Blog:

Search This Blog

Valuable Information

Concisus Vitae

GrrlScientist is an evolutionary biologist and ornithologist who loves to write about "E3": evolution, ethology and ecology and the subtle relationships between these fields, especially in birds.

GrrlScientist's new blog can be accessed through any one of these five domain names: GrrlScientist.net, grrlscientist.org, grrlscientist.info, grrlscientist.com, or grrlscientist.us (keep in mind that, in the future, these domains may point to different places). GrrlScientist's current blog home is at her NATURE Network blog, Maniraptora.

Online interviews with GrrlScientist: Kolibri Expeditions, ScienceOnline09, Nature Blog Network and ScienceBlogs. More biographical information about GrrlScientist.

Follow GrrlScientist:

GrrlScientist's banner was designed by graphic artist, Jeff Hebert, whose other work can be viewed at his site, Hero Machine.





Recent Posts

Recent Comments

$upport This Scholar

Worthy Causes to $upport

Meters and Counters

« Harry Potter and the Half-Blood Prince 2 | Main | Etu-Töölö Finland, 2 »

Mystery Bird: Blue Grosbeak, Passerina caerulea

Topic Categories: BirdingMystery BirdsPhotography
Posted on: November 29, 2008 9:59 AM, by "GrrlScientist"

tags: , , , ,

[Mystery bird] Blue Grosbeak, Passerina caerulea, photographed at High Island, Texas. [I will identify this bird for you tomorrow]

Image: Joseph Kennedy, 11 April 2007 [larger view].

Nikon D200, Kowa 883 telescope TSN-PZ camera eyepiece 1/500s f/8.0 at 500.0mm iso800.

Please name at least one field mark that supports your identification.

Rick Wright, Managing Director of WINGS Birding Tours Worldwide, writes:


A blue bird. With a short, broad tail. And a huge bill. This is a male Blue Grosbeak in all his glory.

The classic confusion species is Indigo Bunting, another member of the genus Passerina. But especially in a view like this, we'd see the longer, paler, uniformly dark of an Indigo Bunting, the more slender body, the uniformly dark blue wings, the more diffusely blackish face, and the more sparrow-like bill of that smaller species. In poor light or at a distance, either species can appear simply blackish, but even then the longer tail, finer body, and slighter bill of Indigo Bunting should distinguish it readily from the fist-shaped Blue Grosbeak.


Review all mystery birds to date.

Share on Facebook
Share on StumbleUpon
Share on Facebook

Comments

1

Haha. Now there's a bird. None of this indeterminate chick stuff.

Male Blue Grosbeak, based on the blue color and that gross beak.

Posted by: John Callender | November 29, 2008 11:16 AM

2

Blue grosbeak. At first, I thought it was an indigo bunting, but looking more closely at the beak and the shoulder color, I'm going with the grosbeak.

Posted by: Russell | November 29, 2008 11:44 AM

3

It's a blue cardinal! OMG! No, seriously: blue grosbeak. Black face, big beak, blue color, flash (from this angle) of rusty red on the shoulder, and shape and color of tail.

Posted by: The Ridger | November 29, 2008 2:04 PM

4

Male Blue Grossbeak. The large bill and the rufus on splash on the wing are diagnostic.

Posted by: Ian H Kinman | November 30, 2008 5:34 PM

5

It's important to note that this species is in the genus Passerina.

Posted by: Rick Wright | December 1, 2008 8:59 PM

6

wow, DUH! thanks for the correction, rick. i am so tired that i cannot think straight today, which i assume is glaringly obvious at this point. time to go to bed, methinks.

Posted by: "GrrlScientist" | December 1, 2008 9:06 PM

ScienceBlogs

Search ScienceBlogs:

Go to:

Advertisement
Follow ScienceBlogs on Twitter

© 2006-2011 ScienceBlogs LLC. ScienceBlogs is a registered trademark of ScienceBlogs LLC. All rights reserved.