Sentence examples for birds were approximately from inspiring English sources

The birds were approximately 75 cm (30 inches) long and had short wings which were used for underwater swimming.

When tested (November 2009 January 201010), all birds were approximately 6 8 months of age.

The experiment described in the current paper commenced in November 2009 when all birds were approximately 6 months of age; the short breeding season of starlings in the North-East of England only allows for one brood, meaning that all our birds were of very similar age when tested.

Digit ratio measurements were taken when birds were approximately 12 weeks old (see details below).

Birds were approximately 10 months old at the time of the experiments reported here.

Part A (ca. 30 days per replicate) took place in February June 2010 when birds were approximately 1 year old.

Ho et al. (1974) were the first to report that R/O hens developed moderate to severe aortic atherosclerosis after 18 months of endogenous hyperlipidemia (i.e., when birds are approximately 2 years of age).

Bill depths were approximately Gaussian distributed (see Supporting Information, Figure S1), and we have measurements for n d = 1025 birds.

Twenty-two ravens (17% of the total number of marked birds) were present on approximately half of the days sampled and are called frequent visitors hereafter.

Fresh food diet was provided ad libitum along with adult diet (see below) for one week and then fresh food was reduced gradually over the course of the three weeks until birds were on adult diet by approximately day 60.

Birds were genotyped for markers spaced approximately every 16, 14 and 8 cM on chromosomes 1, 4, and 5, respectively.