What are the challenges faced by cavity-nesting birds?

birds. Aves. Birds are vertebrate animals that have feathers, wings, and beaks. Like all vertebrates, they have bony skeleton. Most birds are able to fly, but ... Bird Flu. H5N1 Bird Flu How is it Spreading? Current Situation. H5 bird flu is causing outbreaks in wild birds and poultry, other animals and sporadic human ... Bird Flu (Avian Influenza). Avian influenza, commonly called “bird flu,” is a viral infection that spreads in birds, cows and other animals. It can sometimes ... Hawks, owls, falcons, and vultures are all considered birds of prey. Busch Gardens is home to several species, including owls and eagles. Email. Sign ... 89 bird species are listed as either threatened or endangered under the US Endangered Species Act. An additional 269 species are listed as Birds of ... Every native plant is great for bird populations, because native plants offer the best food and habitats for wildlife (especially compared to lawns or non- ... In the view of most paleontologists today, birds are living dinosaurs. In other words, the traits that we accept as defining birds -- key skeletal features as ... What are birds? View. Birds are animals. Like us humans, they have a spine (this makes them 'vertebrates' - like us!). Unlike us, they are not mammals. If you ... Birds Keep Our Ecosystems Running Smoothly · Birds eat insect pests that would otherwise decimate agricultural crops, gardens, and other vegetation. · Birds ... Birds provide humans with pleasure, joy, and spiritual inspiration merely by their presence. Perhaps most importantly, birds are also excellent indicators of ...