Sentence examples for orders of birds from inspiring English sources

The nightjars and related families date back as a group to the Eocene Epoch (about 56 34 million years ago) and are not as old as many other orders of birds.

Of 27 orders of birds, only three--parrots, hummingbirds, and songbirds--have this talent.

First, most orders of birds do not have fossil evidence across the entire timespan of their existence.

Cooper and Penny looked at 16 orders of birds, using two small fragments of genes--600 base pairs of a protooncogene in the nucleus, and a 390-base pair region from the mitochondrion, a cellular organelle that has its own DNA.

The first edition was organized as follows into four "Orders" of birds.

Yet despite centuries of close coexistence, he said, "it's been very, very hard for people to work out the simple relationship between different orders of birds".

Nevertheless, since the cone mosaics from four species representing four orders of bird show such similar geometric features and spatial organization, it is likely that they share similar mechanisms of cone spacing which may be representative of all diurnal bird retinas.

What's with the meaningless order of birds in field guides?

Among many other reasons, this typeface was not used because the order of birds in a flock shifts regularly.

Statements to the effect that N. wetzeli was "primitive" or "reptilian" are erroneously based on a superficial resemblance to the toothed Hesperornithiformes (see Hesperornis), an order of birds from the Cretaceous Period (146 million–65.5 million years ago).

Other studies have also found that species with bigger brains fare better in cities. "It is logical to conjecture that brain size can be related to the success in an urban environment, which is both novel and harsh," said the authors of a study of passerines, the largest order of birds.