Sentences with phrase «of juvenile birds»
They tabulated the number of juvenile birds versus adults for 34 species breeding near the stations.
http://www.sciencemag.org/ Not exact matches
They monitored the neuronal auditory response when the birds listened to different songs - their own, the tutor, other zebra finches, and the songs of different songbird species - in tutored juvenile birds and in isolated juvenile control birds.
«The fact that we see a full clutch of unhatched turkey eggs, along with other juvenile and adult turkey bones nearby, tells us that these birds were domesticated,» says Feinman.
We predicted that when birds listen to father's song, these experiences modify the juvenile birds» brain circuits to form a memory of it.»
Previous studies of juvenile Enantiornithes have shown that the sternums of these birds ossified in a pattern different from modern and other ancient birds.
On other islands with large populations of birds, those birds might help to keep their islands crab - free by eating juvenile coconut crabs, preventing them from colonizing there.
Modern birds have skulls that look remarkably like those of juvenile dinosaurs, offering an unusual explanation for how birds came to have relatively large brains.
USC scientists have discovered a population of neurons in the brains of juvenile songbirds that are necessary for allowing the birds to recognize the vocal sounds they are learning to imitate.
Kelp provides a long three dimensional structure that offers protection and a source of food for many juvenile species of fish (pollock, cod, and flounder), juvenile and adult shellfish (lobsters and crabs), seals and birds (terns and gulls).
Although this bird is extinct in the wild, almost all of the captive adults and nearly half of the captive juveniles the scientists tested used sticks and other objects to retrieve food from hidden locales, often altering the tool materials to do so.
We plan to observe the activity of neurons in the HVC and in auditory regions while juvenile birds are taught to sing by older adults, attempt the songs themselves and sleep.
Some of the last Passenger Pigeons collected from the wild were juveniles, proving that when there were only a few hundred birds left in the world they still produced offspring.
Of note, the singing - to - FoxP2 correlation observed here in hearing juveniles was previously observed as a trend in adults for both mRNA [21] and protein [22], but has now emerged as a significant relationship in younger birds.
Harrison's Bird Foods incorporates USDA - certified organic, non-GMO ingredients in all 11 of their pet bird formulas: High Potency Coarse, High Potency Fine, High Potency Super Fine, High Potency Mash, Adult Lifetime Coarse, Adult Lifetime Fine, Adult Lifetime Super Fine, Adult Lifetime Mash, Pepper Lifetime Coarse, Power Treats and Juvenile Hand - feeding Formula as well as their line of organic seeds and seed blends for free - ranging biBird Foods incorporates USDA - certified organic, non-GMO ingredients in all 11 of their pet bird formulas: High Potency Coarse, High Potency Fine, High Potency Super Fine, High Potency Mash, Adult Lifetime Coarse, Adult Lifetime Fine, Adult Lifetime Super Fine, Adult Lifetime Mash, Pepper Lifetime Coarse, Power Treats and Juvenile Hand - feeding Formula as well as their line of organic seeds and seed blends for free - ranging bibird formulas: High Potency Coarse, High Potency Fine, High Potency Super Fine, High Potency Mash, Adult Lifetime Coarse, Adult Lifetime Fine, Adult Lifetime Super Fine, Adult Lifetime Mash, Pepper Lifetime Coarse, Power Treats and Juvenile Hand - feeding Formula as well as their line of organic seeds and seed blends for free - ranging birds.
According to authors Anne L. Balogh, Thomas B. Ryder, and Peter P. Marra (all of whom are affiliated with the Migratory Bird Center), the Opal Daniels and Spring Park sites accounted for 34 of 42 total juvenile mortalities.
Domestic cats in suburban areas that are allowed outside spend the majority of time in their own or adjacent yards, so they are likely able to intensely monitor, locate and hunt inexperienced juvenile birds.
Most of the birds on these sites or in rescue facilities are adults, so if you are looking for a very young or juvenile bird, you may not find one there.
Catbird Mortalities Referring to research conducted by the Smithsonian Migratory Bird Center's Peter Marra, Butler contends that «cats caused 79 percent of deaths of juvenile catbirds in the suburbs of Washington, DC.»
Zooplankton and small fishes prey on tarpon in the egg and larval stages, and piscivorous birds are primary predators of juvenile tarpon once they enter nursery areas.
But critics say such a step forward comes at the expense of other animals, including 94 birds — most of which were juvenile white - crowned sparrows — found dead on the island after the poisoning.
We then arrived to an interesting saltwater flat with tons of birds and juvenile fish.
One of many puzzling findings is that the high rate of deformities is largely confined to adult birds, not juveniles.
The fragile population experiences a high mortality rate for both adult and juvenile birds, the Center for Biological Diversity reports, and is threatened in several ways — most notably by the efforts of nearby Prescott, Arizona, to remove water from the Upper Verde River.
The strange - looking birds still face long odds, of course — odds that naturalists with the Royal Society for the Protection of Birds and other groups hope to improve by tracking three of the remaining Syrian birds and two of the newly introduced Turkish juveniles in an attempt to better understand their migratory route, diet, and the threats they birds still face long odds, of course — odds that naturalists with the Royal Society for the Protection of Birds and other groups hope to improve by tracking three of the remaining Syrian birds and two of the newly introduced Turkish juveniles in an attempt to better understand their migratory route, diet, and the threats they Birds and other groups hope to improve by tracking three of the remaining Syrian birds and two of the newly introduced Turkish juveniles in an attempt to better understand their migratory route, diet, and the threats they birds and two of the newly introduced Turkish juveniles in an attempt to better understand their migratory route, diet, and the threats they face.