Ruby-crowned Kinglet

Regulus calendula Linnaeus

 

 

 

Field Guide IDs:
NG-338 G-252; PE 2l6; PW-pl 49; AE pl 459; AW-pl 510; AM(III)-36


Nest
Location
Nest
Type
Eggs &
Mating System
Dev. &
Parental Care
Primary &
2ndary Diet
..
Foraging
Strategy
MF
I: 12? DAYS
ALTRICIAL
15 feet - 30 feet
(2 feet - 100 feet)
F?
7-9
(5-11)
MONOG
F: 12? DAYS
MF
TREE SAP
BERRIES
HOVER &
GLEAN
HAWKS

BREEDING:

Coniferous and coniferous-deciduous forests. ? broods.

DISPLAYS:

Male displays with red crest erect, singing a "wheezy, subdued song."

NEST:

Hung from limb, open at top with cavity deep enough to conceal incubating bird; of moss, lichen, down, twigs, dead leaves, lined with fine materials.

EGGS:

Creamy white to muddy cream, variably spotted with brown, usu wreathed. 0.5" (14 mm).

DIET:

Includes spiders; few seeds.

CONSERVATION:

Winters s to w Guatemala. Rare cowbird host.

NOTES:

Winter studies suggest that size of N.A. breeding populations may be limited by conditions experienced during the winter. Forms loose, mixed-species winter flocks with titmice, nuthatches, Brown Creepers, Golden-crowned Kinglets, and warblers.

STANFORD. NOTES:

Fairly common migrant and winter resident in various habitats throughout campus.

ESSAYS:

Bird Guilds; Mixed-Species Flocking; Population Dynamics.

REFERENCES:

Laurenzi et al., 1982.

Except for Stanford Notes, the material in this species treatment is taken, with permission, from The Birder's Handbook (Paul Ehrlich, David Dobkin, & Darryl Wheye, Simon & Schuster, NY. 1988).