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1-16 December 2015

Installment #631---Visitor #

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The write-up about a solo Operation RubyThroat hummingbid banding expedition to Ujarrás, Costa Rica is pending; we regret the delay. The expedition was funded by ORT alumni from our previous 25 trips. Please check back later for the photo essay.

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"This Week at Hilton Pond" is written and photographed by Bill Hilton Jr., executive director of Hilton Pond Center for Piedmont Natural History

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Thanks to the following fine folks for recent gifts in support of Hilton Pond Center for Piedmont Natural History and/or Operation RubyThroat: The Hummingbird Project. Your tax-deductible contributions allow us, among other things, to continue writing, photographing, and sharing "This Week at Hilton Pond" with students, teachers, and the general public. Please see Support or scroll below if you'd like to make a gift of your own.

We're pleased folks are thinking about the work of the Center and making donations. Those listed below made contributions received during the period. Please join them if you can in coming weeks.

Gifts can be made via PayPal (funding@hiltonpond.org); credit card via Network for Good (see link below); or personal check (c/o Hilton Pond Center, 1432 DeVinney Road, York SC 29745).

The following alumni of one or more of our 25 Operation RubyThroat citizen science expeditions to Central America made contributions designated to defray costs of our solo research trip to Ujarrás, Costa Rica in December 2015 (described in the photo essay above). Other alumni may made donations that were undesignated and that were acknowledged in another installment of "This Week at Hilton Pond." We are grateful for the generosity and on-going support of all our Neotropical alumni, whose generosity enables us to continue our trend-setting work with Ruby-throated Hummingbirds on their wintering grounds.

  • Marie Baumann
  • Anne Beckwith
  • Susan & Jim Brownell
  • Alexis Dandretti
  • Beth Ann Fennelly
  • Pat Fitzgerald
  • Ann Fullerr
  • Mindy Hetrick
  • Marilyn & Bill Hinze
  • Lisa Hipes
  • Elizabeth Houlihan
  • Lynn & Terral Jordan
  • Kathy Mills
  • Bob Ozipko
  • Jean Rippere
  • Kathy Roggenkamp
  • Betsy Russell
  • Thomas Schilke
  • Leslie Seigal-Bergum
  • Judy Schwarzmeier
  • Marleigh Sheaff
  • Lisa Spellman
  • Ann Truesdale
  • Sally Tucker
  • Gail & Tom Walder
  • Mary & Gary Wolf
  • Levi Wood
  • Catherine Wu

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The Piedmont Naturalist--Vol. 1--1986 (Hilton Pond Press) is an award-winning collection of newspaper columns that first appeared in The Herald in Rock Hill SC. Optimized for tablets such as iPad and Kindle, electronic downloads of the now out-of-print volume are available by clicking on the links below. The digital version includes pen-and-ink drawings from the original edition--plus lots of new color photos. All sales go
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1-16 December 2015


* = new banded species for 2015

14 species
47 individuals

50 species (34-yr. avg. = 65.8)

2,215 individuals
(34-yr. avg. =
1,856.0 )
242 Ruby-throated Hummingbirds (32-yr. avg = 166)

(Banding began 28 June 1982; since then 171 species have been observed on or over the property.)
126 species
63,101 individuals
5,296 Ruby-throated Hummingbirds

(with original banding date, sex, and current age):

12/11/12--after 3rd year male

--As of 16 Dec Hilton Pond's 2015 Yard List stands at ??--about ??% of the 171 avian species encountered locally since 1982.

--The immediate past installment of "This Week at Hilton Pond" was a collection of nature observations for November 2015. It is archived and always available on the Center's Web site as Installment #630.

All text & photos © Hilton Pond Center

Oct 15 to Mar 15:
East of the Rockies please report your sightings of
Vagrant & Winter Hummingbirds

(immature male Rufous Hummingbird at right)

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Hilton Pond Center for Piedmont Natural History is a non-profit research, conservation & education organization in York, South Carolina USA; phone (803) 684-5852. Directed by Dr. Bill Hilton Jr., aka "The Piedmont Naturalist," it is parent organization for Operation RubyThroat. Web site contents--including text and photos--may NOT be duplicated, modified, or used in any way except with express written permission of Hilton Pond Center. All rights reserved worldwide. To request permission for use or for further assistance, please contact Webmaster.