We examined development of endothermy in altricial Red-winged Blackbirds (Agelaius
phoeniceus) by measuring oxygen consumption (̇ V o _ 2)(V˙ o 2), body temperature and …

The ontogeny of shivering thermogenesis was investigated in the altricial red-winged
blackbird (Agelaius phoeniceus). Two indices of heat production–the rate of oxygen …

Young of the altricial red-winged blackbird (Agelaius phoeniceus) undergo dramatic
changes during postnatal development. Neonates of this species are small (approximately …

The energy allocation hypothesis predicts that increased maintenance costs and use of
thermogenic tissues accompanying the development of endothermy in altricial birds reduce …

Metabolic rate and body temperature (T b) were measured during 2 h of exposure to
ambient temperatures (T a) of 5-32 C in (a) broods of three or four redwing blackbirds …

Cold acclimation in birds involves a comprehensive array of physiological and
morphological adjustment ranging from changes in aerobic enzyme activity to metabolic rate …

1. Developmental changes in metabolic rate and thermoregulatory ability were documented
in the American coot (Fulica americana). 2. 2. Prenatal metabolic rate rose exponentially …

The capability to produce heat in cold by nonshivering thermogenesis (NST) was studied in
Pekin ducklings and Japanese quail chicks acclimated to cold for 3 weeks using indirect …

Attaining endothermic homeothermy occurs at different times post-hatching in birds and is
associated with maturation of metabolic and aerobic capacity. Simultaneous measurements …

Thermogenic capabilities of red-winged blackbirds improve markedly during their 10–12-
day nestling period, especially between day 5 and day 8. The time course of improvements …