01 Fatten at flowers
Trapline or defend a patch until mass allows a crossing or a night.
Operating a hummingbird life is a loop: sense, decide, act, and stay inside an energy and legal envelope.
Steps are type-level -- hunt, migrate or spawn -- not a promise that every individual follows the same film sequence.
Principles
Energy in, work out
Nectar sugars plus insect protein. Hovering is among the costliest vertebrate gaits; torpor is the nightly rebate.
Information before motion
Colour vision into the near-ultraviolet helps flower finding. Spatial memory of traplines is the cognitive load.
Replacement rate
Slow breeders (whales, apes, albatrosses, tigers) cannot outrun a short political cycle. Fast clutch species still fail if the nest site vanishes.
Place is part of the phenotype
A hummingbird without its lake, ice, anemone or gravel is a different, usually failing, animal.
Human systems are now habitat
Quotas, feeders, reserves and films rewrite survival as much as weather. Gram-scale fat stores and weather windows bound migration. Island endemics have nowhere to shift when scrub is cleared.
Diagrams
Hummingbird forage / hunt loop
Locatesense
Approachmove
Strikeact
Handlehandle
Feed younginvest
Disperseleave
Hummingbird life-cycle loop
Pairstart
Nestgrow
Incubatemove
Fledgelearn
Migratebreed
Returnend
Life-cycle steps
02 Hover and lick
Tongue grooves wick nectar faster than suction myths claim.
03 Hawk insects
Protein for eggs and chicks comes from midges, not syrup.
04 Enter torpor
Overnight metabolic collapse if the larder is thin.
05 Migrate or altitudinal shift
Ruby-throated cross water; Andean species track blooming upslope.
06 Nest on a fork
Lichen-and-silk cups hold two pea-sized eggs.
Hard limits
Physiological envelope
Gram-scale fat stores and weather windows bound migration. Island endemics have nowhere to shift when scrub is cleared.
Place dependence
Without the breeding site or forage pulse, brochure behaviour is theoretical.
Human and legal limits
Quotas, listings and trade rules now bound real populations as tightly as weather.
Keep exploring
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