Pen & Ink

Leaf showing signs of fungal wilt with infected branch behind; the leaf is discoloured and wilted

Ink landscape of the wetlands of the Okavango delta in Botswana showing palm trees, wetlands, and associated wildlife such as hippo, cranes, termite mounds, storks, and crocodile

Ink landscape of a peat bog upland with wading wetland birds including curlew, green plover or peewit, great northern diver, and golden plover in summer plumage all gathered around a shallow tarn or pool

Wetland landscape of a rice paddy with a farmer tending the rice plants in the flooded fields and with Cattle egret, White crane, palm trees, and women planting rice in the distance near a hut or shelter, mountains loom up behind the pastoral scene as the crane flies overhead

Stylized diagram of the duck egg showing chalaza, yolk, white, germination, membranes, and air pocket

Smew Mergellus albellus pen and ink illustration of the bird swimming on water

Pigeon Columba livia skeleton simple line drawing

Mallard duck Anas platyrhynchos female with four inquisitive ducklings, pen and ink drawing with the mother duck facing right and the four ducklings busy exploring behind her.

Mallard Anas platyrhynchos fledgling with moulting feathers on grass

Stylized diagram of the development of a duck egg from being laid until after hatching Day one yolk held in place with chalaza, germinal disc where fertilized chick starts to grow

Stylized diagram of the development of a duck egg from being laid until after hatching day twelve feathers start to show eye covered with lid claws formed

Stylized diagram of the development of a duck egg from being laid until after hatching Day 27 hatchling squashed inside egg ready to hatch, air cell still shows

Stylized diagram of the development of a duck egg from being laid until after hatching day five embryo separates from the yolk, blood vessel network grows and branchesm eye starts to get a colour.

Stylized diagram of the development of a duck egg from being laid until after hatching day eight blood vessels carry waste and oxygen, eyelids start to cover eye, beak and egg tooth more clear.

Stylized diagram of the development of a duck egg from being laid until after hatching duckling hatching half in half out of shell with prominent egg tooth

Stylized diagram of the development of a duck egg from being laid until after hatching hatched duckling chick

Bird bone cross section showing cross bracing for strength and hollow structure

Stylized diagram of the internal organs and anatomy of a duck within a pen outline

Cane toad Rhinella marina