Paraves

a simplified model of a food web containing Accipiter cooperii. VISIT VERA to learn more about the modeling tool and how to run simulations of your own

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

CreatureCast.org brings you stories about the unexpected world of animals. In this episode, Rebecca Helm talks about the battle of the sexes going on beneath the surface.This work is provided under a Creative Commons Attribution-Noncommercial-Share Alike license. Music by Bird Names.

American Robin foraging on the lawn in front of the National Gallery. 31 March 2010.

There are three different songs here sung by a Western Meadowlark. The first repeats three times, the second song repeats 4 times, and the third song is repeated three times. This was recorded on Marble Hot Springs Road at the 2nd 90 degree turn as the Meadowlark sang from the telephone wire above. In the background you will hear cows moo and a few other birds call as well, but the Western Meadowlark is clearly the focal subject of the recording. This was recorded with a Fostex FR-2 and Sennheiser shotgun microphone, ME66. The photo attached is a spectrogram of Western Meadowlark made in Raven Pro. (taxonomy:binomial="Sturnella neglecta")

Every morning when he walks the dog, retired professor of natural history Peter Slater can identify as many as thirty birds by their song alone. On a walk in a Scottish town with Ari Daniel Shapiro, Slater explains what two common songsters, the chaffinch and winter wren, are singing about, and how even city dwellers can learn to “bird by ear” in their own neighborhoods, with rewarding results. Download a transcript of the podcast Chaffinch, Photo Credit: Blake Matheson read moreDuration: 5:21Published: Wed, 23 Jan 2013 20:30:18 +0000

South Pacific Ocean, Duration 83 seconds

Chroicocephalus novaehollandiae is not the primary subject of the video clip; the primary subject is Pelecanus conspicillatus (Australian pelican). Coral Sea, Duration 34 seconds

Eastern Pacific Ocean, Duration 17 seconds

Coral Sea, Duration 21 seconds, Shot includes Monodactylus argenteus (Diamondfish)

Eastern Pacific Ocean, Duration 11 seconds

Eastern Pacific Ocean, Duration 15 seconds

Stevns klint, Danmark

Danmark

Vildtfarm Nord

Kruger National Park, Sydafrika, Afrika. South Africa

Borreby Mose

Lille Vildmose