Yellow Hammers

The clutch is usually three to five whitish eggs, typically patterned with a network of fine dark lines. The eggs average 21 x 16 mm (0.83 x 0.63 in) in size and weigh 2.9 g (0.10 oz), of which 6% is shell.^[19] The female incubates the eggs for 12–14 days to hatching, and broods the altricial downy chicks until they fledge 11–13 days later. Both adults feed the chick in the nest and two or three broods are raised each year