Sentence examples for birds the level from inspiring English sources
In birds the level of the hormone thyroxine determines the coloration of feathers and bill, although specific seasonal biochromes are often laid down under the influence of sex hormones, as in the beak of the starling, which turns from black to yellow in early spring.
RSPB Scotland director Stuart Housden said: "While we acknowledge that DF Concerts has gone some way towards reducing potential disturbance and increasing the chances of success for the birds, the level of risk requires strict conditions and the powers to enforce them.
In MDA-14/V birds, the level of those antibodies were elevated already on day 7 PV.
Studies were made in the late 1950s and early 1960s that examined the results of control methods such as the killing of birds, the levelling and clearing of land to eliminate updrafts and the destruction of annual nesting sites.
All forms of chili diet significantly reduced MDA in birds to the level that could compare to stress-negative control group but the level was not significantly different from the avilamycin and α-tocopheryl acetate groups.
The third is to use fewer than or equal to a certain amount of birds to clear the level.
These results support the hypothesis that evolutionary fine-tuning of the cone system in birds extends to the level of spatial patterning.
The study also found that despite the ongoing influx of infected birds into LBMs, the level of environmental contamination decreased with routine cleaning and disinfection.
When will Defra act to end the illegal persecution of the nation's ninth favourite bird?" Lindo said the level of participation had been "incredible" and had twice crashed the site he had set up to receive votes.
If all of the pigs are killed by the time the last bird is used, the level is completed and the next level is unlocked.
(2002) examines taxonomic levels to find that significant phylogenetic conservatism exists in the dietary niche breadth of 142 European bird species at the level of family and genus.
