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Sheldon, F. H., and F. B. Gill. 1996. A reconsideration of songbird phylogeny, with emphasis on the evolution of titmice and their sylvioid relatives. Syst. Biol. 45:473–495.

Sibley, C. G., and J. E. Ahlquist. 1985. The phylogery and classification of the passerine birds, based on comparisons of the genetic material DNA. Proc. 18th Int. Ornith. Congr. 1984.

Thaler, E. 1990. Die Goldhähnchen. Wittenberg Lutherstadt: A. Ziemsen Verlag.

Thaler, E., and K. Thaler. 1982. Feeding biology of Goldcrests and Firecrests and their segregation by choice of food. Ökol. Vögel 4:191–204.

Thaler-Kottek, E. 1986. The genus Regulus as an example of different survival strategies: Adaptation to habitat and ethological differentiation. In Acta XIX Intern. Congr. Ornithol. II (Ottawa). Pp. 2007–2020.

Searchable Terms

adrenaline

aestivation

aggregation behavior

aging, human

alder flycatcher

alligator snapper (turtle)

amphibians

torpor of

Anasazi Indian shelter

Animals of the North (Pruitt)

Anna hummingbird

antifreeze

aphids

appetite suppression

Appleton’s Popular Science Monthly

archaea

Archaeopteryx (fossil)

arctic ground squirrel

Arctiid caterpillar

arrowwood

Asian ladybug

astronomical cycle

Audubon, John James

bacteria

badger

balsam fir

bank swallow

Barnard, William

Barnes, Brian M.

barn swallow

bats

bears

beavers

dams

lodges

Beck, Thomas I.

beech

bee clusters

bee dance

bee defecation

bees. See honeybeebeetles

diving

ladybird

long-horned

Bell, Ross T.

Bent, Arthur Cleveland

Bentley, Wilson Alwyn

Bergmann, Carl

Bergmann’s Rule

berries, winter

Bicknell’s thrush

bird bills

bird migration

bird nests

for breeding

reuse of

vulnerability of

birds

air-breathing and

body fat of

feathers of

flocking behavior of

food storage by

hibernating

hypothermia and

insect-eating

insulation

multispecies flocking behavior

reptiles and

winter berries and

See also specific kinds

Birds in Jeopardy (Ehrlich, Dobkin, and Wheye)

Birds of America, The (Fuertes)

black-backed woodpecker

black bear

blackburnian warbler

black-capped chickadee

blackcap warbler

black-tailed gnatcatcher

Blem, Charles R.

blood glucose

bluebird

blue jay

body fat, bird

body temperature

of bats

of bears

of beavers

of black-capped chickadee

of deer mice

of golden-crowned kinglet

of honeybees

of muskrats

of toads

of white-faced hornet

Bohemian waxwing

Booma, Glenn

brain size

Breckenridge, Walter J.

breeding nests

broad-tailed hummingbird

brown creeper

brumation

buckthorn

buds, winter

bufflehead

bumblebee

Burroughs, John

butterflies

monarch

butternut

caliphorid flies

Canada jay. See gray jay

Caprimulgidae

cardenolides

carpenter ant

catbird

nest

caterpillar

Arctiid

eastern tent

geometrid

Gynaephora

woolly bear

cave swiftlets

cecropia moth cocoon

cedar waxwing

nest

Celsius scale

Chaplin, Susan Budd

chestnut-sided warbler

chickadee

black-capped

chicken, newly hatched, 118chicoree.

See red squirrel chimney swift

chipmunk

eastern

chloroplasts

chorus frog

chronobiology

circadian clocks

circannual calendars

cliff swallow

clusters, bee

cocoons

Cohen, Jeremy

Collembola See snow flea Colter, John

Confuciornis

Corvidae

Covell, Charles V.

coyote

Crocker, Carlos

crossbill

crows

cryobiology

cryonic suspension

Daan, Serge

Darwin, Charles

day-active mammals

deception-evolved tails

DeCoursey, Patricia J.

deer

deer mouse

defecation, bee

dehydration

dens. See nestsdesert fly

diapause

dinosaurs

dippers

Disney, Walt

Dobkin, D. S.

double-clutching

downy woodpecker

dreys. See nests

Duman, Jack

eastern chipmunk

Eastern Moths (Covell)

eastern tent caterpillar moth

Ehrlich, P. R.

elderberry

electroencephalograms (EEGS)

endothermy

energy economy

bears and