Author: admin

23 JUN

Rapid change in nest size of a bird related to change in a secondary sexual character

beheco.oxfordjournals.org Anders Pape Møller Laboratoire de Parasitologie Evolutive, CNRS UMR 7103, Université Pierre et Marie Curie, Bât. A, 7ème étage, 7 quai St. Bernard, Case 237, F-75252 Paris Cedex 05, France Address correspondence to A.P. Møller. E-mail: amoller@snv.jussieu.fr. Among bird species in which males contribute to nest building, sexual selection has favored larger nests. I […]

22 JUN

BARN SWALLOWS DO FEMALE BARN SWALLOWS CHOOSE LONG TAILS?

merlejacobs.com Møller (1) found that experimental lengthening the tail of barn swallow males led to earlier mating and therefore an increase in offspring. Since he observed no significant differences in intensity of male-male aggressive encounters among males at the nesting sites he attributed the early mating solely to female choice. This released a flood of […]

22 JUN

Hirundo rustica(barn swallow)

By Tanya Dewey Information Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Aves Order: Passeriformes Family: Hirundinidae Genus: Hirundo Species: Hirun Barn swallows are native in all the biogeographic regions except Australia and Antarctica. The breeding range of barn swallows includes North America, northern Europe, northcentral Asia, northern Africa, the Middle East, southern China, and Japan. […]

21 JUN

Swifts,Swallows catch flies(and other thing)at Ball park


sfgate.com
Rob Lee
Whether the Giants are winning games in big fistfuls, or can’t produce as much offense as a foul-mouthed grandmother, there’s always a good reason to go to their ballpark. I’m not talking about the starlings foraging in the outfield grass, or the hordes of Western gulls that begin gathering faithfully during the seventh-inning stretch (although the best seats for my proposed entertainment are in the upper deck, with the gulls).
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21 JUN

Composition and Structure of Barn Swallow Nests

oas.ucok.edu Eric Whelan Abstract Barn swallows, Hirundo rustica, are small migratory birds found almost anywhere. They stay in Oklahoma for nine months at a time and migrate to the south. They have two broods a breeding season. Their nests are made of soil, plants and other materials available to them. The objectives of my research […]

21 JUN

Authentic Analysis and Formulation Design of Instant Bird’s Nest Products


roweb.cityu.edu.hk
Principal Investigator
Dr. CHEUNG, Hon Yeung
Associate Professor, Department of Biology and Chemistry
Stage of Technology Transfer: Commercially viable technology
Research Area: Life science ─ biotechnology
 

Background
Edible bird’s nest (EBN) is essentially the tiny nest woven by Swallows or Collocalia (Apodidae) from gelatinous strands of the bird’s saliva mixed with minor feathers or botanic substances. The birds build their nests wherever they like but mainly on the top of sea caves. Since it contains some of the essential glyconutrients and epidermal growth factors, it is a nourishing food and a booster of health. Southeast Asian people consume it because it promotes tissue and cellular growth as well as speeding up recovery from illness.
 
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20 JUN

Summary of California studies analyzing the diet of barn owls.

sarep.ucdavis.edu Article written for Sustainable Agriculture Chuck Ingels Farmers and ranchers are looking closely at the benefits barn owls offer as an alternative method of controlling vertebrate pests (see Sustainable Agriculture Vol. 5. No. 1). The diet of the barn owl (Tyto alba) is relatively easy to ascertain, and several dozen studies have been conducted […]

20 JUN

Swifts and Swallows

.theava.com by Rob Lee Whether the Giants are winning games in big fistfuls, or can’t produce as much offense as a foul-mouthed grandmother, there’s always a good reason to go to their ballpark. I’m not talking about the starlings foraging in the outfield grass, or the hordes of Western gulls that begin gathering faithfully during […]