migration

Swift Apus apus parent visiting its nest in the eaves of a brick barn

Swift Apus apus in flight showing sickle shaped wings and dark stomach

Swift Apus apus and House martin Delichon urbicum comparison of the two birds in flight

Nesting tower for swifts, martins, & bats diagram showing the slots for bats, curved slits for swifts and nests for martins

Fieldfare Turdus pilaris with hawthorn berry sitting on branch

Fieldfare pair Turdus pilaris in hawthorn tree with one eating a berry.

Monarch butterfly Danaus plexippus & Queen butterfly Danaus gilippus life cycle on Mexican milkweed Asclepias curassavica.  Illustration includes pupa and caterpillar for both species.

Illustration from “30 Animals that made us smarter” by Patrick Ayree (BBC Books).  Illustration shows an albatross above the wides with distinctive wide wing span and hooked book with tube nostrils.

Blue whale Balaenoptera musculus illustration from A Life on Our Planet by David Attenborough

Barn swallow Hirundo rustica in flight, seen from below, with a small insect in its beak

Barn swallow Hirundo rustica viewed from above with small insect in its beak

Desert locust Schistocerca gregaria on millet adult cut to white

Desert locust Schistocerca gregaria life cycle including early instars, hopper nymphs, egg laying, millet, and swarm in the sky

Desert locust Schistocerca gregaria cut to white sketch

Monarch Danaus plexippus butterfly cut to white

Striped bass Morone saxatilis

Samon Salmo salar smolt showing silvery young fish

Samon Salmo salar parr with distinctive markings and red dots

Samon Salmo salar hen, cock, parr, and smolt stages with text

Samon Salmo salar hen fish showing silvery irridescence

Samon Salmo salar with watery background

Thrush Turdus philomelos amongst grass and meadow flowers, cut to white

Thrush Turdus philomelos nesting in a garden shed amongst gardeing gloves, string, and flower pots

Swift Apus apus sketch in flight