Sentence examples for birds were monitored from inspiring English sources
On a French coastal marsh consisting of 816 fields of wet grasslands, birds were monitored in spring and grazing regimes were assessed at three periods: year, spring, autumn.
To assess the effects of these threats breeding birds were monitored in abandoned, extensively and intensively used vineyards and grasslands in Hungary using point counts to determine species richness and density.
All birds were monitored daily for clinical signs.
Birds were monitored near the study trees within a 50-m radius.
Birds were monitored in the morning during the 20 minutes from light onset to decapitation to ensure that no singing occurred.
Following surgery, Neosporin® (Pfizer, Morris Plains, NJ) was applied to each ear, and birds were monitored on a homeothermic blanket (Harvard apparatus Ltd., Edenbridge, UK) until recovery from anesthesia when they were returned to their parents in breeding cages.
The presence of marked birds was monitored during daily morning feedings (0700 0900 hours) at the enclosures of bears, Ursus arctos, wolves, Canis lupus, and wild boars, Sus scrofa.
The phenology of migratory bird species were monitored at the Hanko Bird Observatory, SW Finland 1979 2008 using standardized migration counts (including four hour standardized migration observation from the sunrise and standardized counts of staging birds) and trapping data (including standardized mist-netting sites, where vegetation cover is kept constant) from 25 July to 5 November [40], [41].
Bird populations were monitored at 24 forest monitoring plots across the watershed by the authors twice a season from 2003 to 2010 following the protocol of Environment Canada's Forest Bird Monitoring Program.
We tested this by examining the correlation across bird species between CLIM and the recent trend in the suitability of the climate within our study area, based upon observed climatic change during the period when bird populations were monitored.
Birds in FD groups were monitored on video to ensure that their singing was targeted to the female bird.
