Sentence examples for birds were active from inspiring English sources

After recording the birds' activity in the evenly-lit chamber for a week, scientists found that city birds were active for an average of 40 minutes longer per day than birds that had been captured in a rural area (about 30 miles south of Munich).

Approximately half of the DES birds were active (MA: 4/9, CCM: 4/9) which was also significantly different from controls (p = 0.01).

Experiments were conducted during the hours of the day when the birds were active (Løvlie and Pizzari 2007).

Owl researchers are a rare breed because most of the birds are active at night and fieldwork is grueling.

The rollerlike birds are active by day (diurnal) and range in length from the size of a small sparrow (about 10 cm, or 4 inches) to about 160 cm (about 63 inches).

During spring and summer, birds are active in bursts through the day and accompany their foraging with song.

Go at the time of the day when birds are active.

Four of the young birds were very active in the high wind performing aerial maneuvers that would have been the envy of a stunt pilot.

Fortunately, the fox had not caused too much damage – the number of enlarged holes had not increased this year, so far, and the birds were very active.

HG birds were more active on the shackle line.

Behavioral measurements on the pre-slaughter shackle line clearly indicated that LG birds were less active than HG birds.