Live in the UK? Interested in helping wildlife? This site deals with creating a wildlife-friendly garden www.welcomewildlife.co.uk Birds and snorkelling photography? Both are great fun. Holiday places, info. on cameras and snorkelling www.snorkellingphotography.com ...
Finches Friend Cleaner Feeders are designed to help prevent illness and death amongst wild birds. Our feeders have a removable feed station for easy cleaning, multiple feed chambers to offer a variety of food and keep it clean and dry, and are made in
Most people like zebras because they are so easy to keep and easy to breed. It makes finch keeping a worthwhile hobby because you can see the family grow. They are charming birds and I personally like all of the different colors and varieties that I work with. It’s a never ending chal...
Centre for Ornithology, School of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UKJohn Wiley & Sons, LtdIbisFernández-Juricic E, Gall MD, Dolan T, Tisdale V, Martin GR (2008) The visual fields of two ground-foraging birds, house finches and house sparrows, allow ...
This group of closely related passerine birds is restricted to islands and shows high levels of exploration (Bowman 1961; Curio and Kramer 1964; Grant 1986). However, Darwin’s finches also show marked inter-specific differences in ecology, which may cause variation in exploratory behaviours. Both...
Most Swedish migrants cross to the Danish islands in October and November and join other Danish birds on a south‐westward track somewhat farther from the coast, returning in March, April and May. There is some evidence that Norwegian and Swedish birds pass the Danish natives in a leap‐frog...
SEXUAL selection is one of the most actively studied areas of evolutionary biology1–3, and ever since Darwin1 birds have been probably the most popular taxon for testing the predictions about colour variation. Humans have been used to assess 'colour', a
SEXUAL selection is one of the most actively studied areas of evolutionary biology1–3, and ever since Darwin1 birds have been probably the most popular taxon for testing the predictions about colour variation. Humans have been used to assess 'colour', a
In fact, sexual dichro- matism is evolutionarily labile in birds [76,77,22], suggest- ing that the genetic correlations between the sexes can be overcome when female coloration is selected to diverge. We conclude that the evolution of female carotenoid col- oration in Carduelis finches, but...
from one as large as that of a hawfinch to that of a chaffinch, and… even to that of a warbler… Seeing this gradation and diversity of structure in one small, intimately related group of birds, one might really fancy that from an original paucity of birds in this archipelago, one spec...