News + Stories

Birds / 10.10.2010

[caption id="attachment_1640" align="alignleft" width="300" caption="Riverside Wren Nest. Photo by Jim Tamarack and Cheryl Chip"][/caption] A few weeks ago I posted a birder’s challenge question where I asked you to tell me how the Riverside Wren (Thryothorus semibadius) was positioned in its nest (go to the archived story here).  Here is the recap and your responses. Since Riverside Wrens are known at times for roosting inside their nests during all seasons of the year with sometimes two or three individuals at a time we wondered about this particular wren when...

Birds / 13.09.2010

[caption id="attachment_1341" align="alignleft" width="300" caption="Riverside Wren nest by Cheryl Chip & Jim Tamarack"][/caption] For those of you who may remember, I posted a feature on the Riverside Wren (Thryothorus semibadius) back in April.  It was one of my first postings for the then new Friends of the Osa's blog The Osa Chronicles and a few of you commented on both the nature history and photography by Gianfranco Gomez. One of the species ecological behaviors I wrote about was of reproduction and nesting.  When I spoke about the nest of...

Birds / 01.05.2010

Of the 22 species of wrens found in Costa Rica, 6 are found here on the Osa Peninsula.  The Riverside wren, a common resident on the Osa, is only found in the southern pacific lowlands of Costa Rica and western Panama up to ~1,200 m.  Wrens as a whole belong to an interesting family of songbirds.  The sexes are alike and the tropical species often remain with their mate throughout the year.  They roam amongst the dense vegetation singing duets with each other in alternating phrases and one...