Peter Cairns / Little Grebe (Tachybaptus ruficollis) feeding on water, Perth, Scotland, UK, April, breeding plumage

Terry Whittaker / 2020VISION / Reedbeds at dawn with Great crested grebe (Podiceps cristatus) on water in mist, Lakenheath Fen RSPB Reserve, Suffolk, UK, May

Stefan Huwiler / Great-crested Grebe (Podiceps cristatus) female on nest yawning. Switzerland, Europe, May.

Stefan Huwiler / Great-crested Grebe (Podiceps cristatus) adult on water. Switzerland, Europe, May.

B&S Draker / Least Grebe (Tachybaptus dominicus) pair mating on nest. Starr County, Rio Grande Valley, Texas, USA.

B&S Draker / Least Grebe (Tachybaptus dominicus) pair mating on nest. Starr County, Rio Grande Valley, Texas, USA.

Rob Tilley / Pied-billed Grebe (Podilymbus podiceps) on water. Everglades Reserve, Florida, January.

Ernie Janes / Little Grebe (Tachybaptus ruficollis) feeding, UK

Ernie Janes / Little Grebe (Tachybaptus ruficollis) on water, UK

Ernie Janes / Great crested grebe (Podiceps cristatus) approaching nest with egg, River Thames, UK

Ernie Janes / Great crested grebe (Podiceps cristatus) collecting nesting material on River Thames, UK

Markus Varesvuo / Great Crested Grebe (Podiceps cristatus) swimming on water. Sweden, April.

Terry Whittaker / 2020VISION / Great crested grebe (Podiceps cristatus) silhouette on water, Rutland Water, Rutland, UK, April

Terry Whittaker / 2020VISION / Great crested grebe (Podiceps cristatus) silhouette on water, Rutland Water, Rutland, UK, April

Terry Whittaker / 2020VISION / Great crested grebe (Podiceps cristatus) silhouette on water, Rutland Water, Rutland, UK, April

Brent Stephenson / Horned / Slavonian Grebe (Podiceps auritus) with prey in its bill to feed chicks. Lake Myvatn, near Akureyri, Iceland, July.

Fabrice Cahez / Great Crested Grebe (Podiceps cristatus) swallowing fish. Vosges, France, May.

Fabrice Cahez / Two Great Crested Grebe (Podiceps cristatus) in distance through flooded trees. Vosges, France, March.

Fabrice Cahez / Little Grebe (Tachybaptus ruficollis) on water. Vosges, France, December.

Fabrice Cahez / Little Grebe (Tachybaptus ruficollis) on water. Vosges, France, April.

Markus Varesvuo / Slavonian / Horned Grebe (Podiceps auritus) on water with nesting material. Finland, August. Magic Moments book plate, page 20.

Markus Varesvuo / Slavonian / Horned Grebe (Podiceps auritus) males fighting on water. Finland, May. Magic Moments book plate, page 48.

Markus Varesvuo / Red-necked Grebes (Podiceps grisegna) on water performing courtship display. Sweden, April. Magic Moments book plate, page 12.

Markus Varesvuo / Great Crested Grebe (Podiceps cristatus) about to dive. Hornborgasjs, Sweden, April. Magic Moments book plate, page 58.

Artur Tabor / Black necked grebe (Podiceps nigricollis) female on nest, River Bug, Poland

Dietmar Nill / Black necked grebes (Podiceps nigricollis) pair at nest, Germany

Mike Read / White-tufted Grebe (Rollandia rolland) resting on water. Falkland Islands, South Atlantic, January.

Nature Production / Little Grebe (Tachybaptus ruficollis) and chicks on water, Tokyo, Japan, June

Andy Sands / Slavonian / Horned Grebe (Podiceps auritus) in winter plumage on water. Thorney Island, Hampshire, England, UK, January.

Charlie Summers / Clark's Grebe (Aechmophorus clarkii) adult on water offering fish to young chick. Bear River National Wildlife Refuge, Utah, USA, June.

Hermann Brehm / Portrait of a Little Grebe (Tachybaptus ruficollis) on water. Bavaria, Germany, July.

Hermann Brehm / Little Grebe (Tachybaptus ruficollis) chick on water. Bavaria, Germany, July.

Hermann Brehm / Male Little Grebe (Tachybaptus ruficollis) swimming with two chicks on his back. Bavaria, Germany, July.

Hermann Brehm / Little Grebe (Tachybaptus ruficollis) on water. Bavaria, Germany, July.

Hermann Brehm / A Little Grebe (Tachybaptus ruficollis) parent with a chick on its back. Bavaria, Germany, July.

Hermann Brehm / Little Grebe (Tachybaptus ruficollis) on water. Bavaria, Germany, July.

Hermann Brehm / Great Crested Grebe (Podiceps cristatus) swimming carrying nesting material. Bavaria, Germany, March.

Hermann Brehm / Female Little Grebe (Tachybaptus ruficollis) with three chicks on water. Bavaria, Germany, July.

Hermann Brehm / Portrait of a Little Grebe (Tachybaptus ruficollis) on water. Bavaria, Germany, July.

Hermann Brehm / Great Crested Grebes (Podiceps cristatus)mating. Bavaria, Germany, March.

Hermann Brehm / Two Great Crested Grebe (Podiceps cristatus)swimming together after mating. Bavaria, Germany, March.

Hermann Brehm / Two Great crested grebe (Podiceps cristatus) courtship display with pondweed in their beaks. Coot in background. Bavaria, Germany, March.

Hermann Brehm / Two Great Crested Grebe (Podiceps cristatus) facing each other during courtship display, Bavaria, Germany, March.

Hermann Brehm / Two Great Crested Grebe (Podiceps cristatus)courtship displaying with pondweed in their beaks. Bavaria, Germany, March.

Brent Stephenson / New Zealand Little Grebe / Dabchick (Poliocephalus rufopectus) on water. Waikanae Estuary, Wellington, New Zealand, February.

Suzi Eszterhas / Western Grebe (Aechmophorus occidentalis) oiled bird, Monterey Bay, California, USA, April

Suzi Eszterhas / Western Grebe (Aechmophorus occidentalis) resting on water, Monterey Bay, California, USA, April

Suzi Eszterhas / Black necked / Eared grebe (Podiceps nigricollis) group on water, breeding plumage, Monterey Bay, California, USA, April

Thomas Lazar / Horned grebe (Podiceps auritus) at nest in reeds, Manitoba, Churchill, Canada.

Mike Read / Red necked grebe {Podiceps grisegena} on water

Thomas Lazar / Horned grebe (Podiceps auritus) at nest in reeds, Manitoba, Churchill, Canada.

Tony Heald / Great Crested Grebe (Podiceps cristatus) carrying nesting material. Cape Town, South Africa, January.

Tony Heald / Great Crested Grebe (Podiceps cristatus) head in profile. Cape Town, South Africa, January.

Florian Möllers / Great crested grebe (Podiceps cristatus) pair with chicks at nest site on the "Grosser Mueggelsee" in Berlin, Germany, July

Florian Möllers / Great crested grebe (Podiceps cristatus) at nest site on the "Grosser Mueggelsee" in Berlin, Germany, July

Florian Möllers / Great crested grebe (Podiceps cristatus) pair feeding chick near nest site on the "Grosser Mueggelsee" in Berlin, Germany, July

Fergus Gill / Slavonian / horned grebe (Podiceps auritus) swimming on a loch. Scotland, June .

Fergus Gill / Slavonian / horned grebe (Podiceps auritus) swimming on a loch. Scotland, June .

Fergus Gill / Slavonian / horned grebe (Podiceps auritus) swimming through reeds on a loch. Scotland, June .

Fergus Gill / Slavonian / horned grebe (Podiceps auritus) catching a fish on a loch. Scotland, June .

Fergus Gill / Slavonian / horned grebe (Podiceps auritus) swimming on a loch, shaking water out of its feathers. Scotland, June .

Colin Varndell / Little grebe / Dabchick (Tachybaptus ruficollis) calling on water, Dorset, UK, July

Markus Varesvuo / Slavonian / Horned Grebes (Podiceps auritus) pair copulating, Finland, May. Magic Moments book plate.

Markus Varesvuo / Slavonian / Horned Grebe (Podiceps auritus) in flight over water, Finland, May

Colin Varndell / Dabchick / Little grebe (Tachybaptus ruficollis) preening on water, Norfolk, UK, July

Mike Potts / Great Crested Grebes (Podiceps cristatus) feeding young chick on water, Herdsman Lake, Perth, Western Australia.

Andrew Parkinson / Pair of Great Crested Grebes (Podiceps cristatus) on lake at dawn. Derbyshire, UK, March (non-ex)

Andrew Parkinson / Great Crested Grebe (Podiceps cristatus) rear view on lake. Derbyshire, UK, March. (non-ex)

Andrew Parkinson / Great Crested Grebe (Podiceps cristatus) on water with crest erect. Derbyshire, UK, March. (non-ex)

Andrew Parkinson / Great Crested Grebe (Podiceps cristatus) portrait on water with crest erect, in evening light Derbyshire, UK, March (non-ex)

Andrew Parkinson / Great Crested Grebe (Podiceps cristatus) on water, in an aggressive posture in a display of dominance over territory. Derbyshire, UK, May (non-ex)

Andrew Parkinson / Great Crested Grebe (Podiceps cristatus) on water, backlit in evening sunlight. Derbyshire, UK, March (non-ex)

Andrew Parkinson / Little grebe (Tachybaptus ruficollis) standing on floating nest, made of weed debris, Derbyshire, UK, March (non-ex)

Andrew Parkinson / Little grebe (Tachybaptus ruficollis) incubating on floating nest, made of weed debris, Derbyshire, UK, March (non-ex)

Michel Poinsignon / Great crested grebe (Podiceps cristatus) pair mating on nest amongst reeds, Lorraine, France, April

Michel Poinsignon / Great crested grebe (Podiceps cristatus) on water, Lorraine, France, March

Alan Williams / Great Crested Grebe (Podiceps cristatus) swimming on lake, with reflections, Lancashire, England, UK, April 2010

Steve Knell / Slavonian grebe (Podiceps auritus) breeding pair in summer plumage. Iceland. May

Steve Knell / Slavonian grebe (Podiceps auritus) portrait on water in summer plumage. Iceland. May

Steven Kazlowski / Black-necked / Eared Grebe (Podiceps nigricollis) with a freshly caught Tilapia (Oreochromis mossambicus) fish in beak, catch in mouth, Salton Sea, Colorado Desert, California

David Kjaer / Pair of Great Crested Grebes (Podiceps cristatus) at nest, Wiltshire, England, UK, May.

David Kjaer / Pair of Great Crested Grebes (Podiceps cristatus) at nest on water, Wiltshire, England, UK, May.

David Kjaer / Pair of Great Crested Grebes (Podiceps cristatus) at nest on water, Wiltshire, England, UK, May.

Gerrit Vyn / Red-necked Grebe (Podiceps grisegena) in breeding plumage performing "whinny-braying" duet in defense of territory. Seward Peninsula, Alaska, USA, June.

Gerrit Vyn / Red-necked Grebe (Podiceps grisegena) portrait on water, in breeding plumage. Seward Peninsula, Alaska, USA, June.

Gerrit Vyn / Adult Pied-billed Grebe (Podilymbus podiceps) on water, with reflections, in breeding plumage. King County, Washington, USA, April.

Gerrit Vyn / Pair of Pied-billed Grebes (Podilymbus podiceps) in breeding plumage. Birds are performing the "greeting duet" vocalization. Notice the much smaller size of the female. King County, Washington, USA, A...

Gerrit Vyn / Horned Grebe (Podiceps auritus) in breeding plumage, on water, Southeast Alberta, Canada. May.

Gerrit Vyn / Pair of Horned Grebes (Podiceps auritus) in breeding plumage, on water, Southeast Alberta, Canada. May.

Gerrit Vyn / Black Necked Grebe (Podiceps nigricollis) on water, in breeding plumage. Alberta, Canada. June.

Gerrit Vyn / Black Necked Grebe (Podiceps nigricollis) on water, in breeding plumage. Alberta, Canada. June.

Gerrit Vyn / Black Necked Grebe (Podiceps nigricollis) on water, in breeding plumage. Alberta, Canada. June.

Rolf Nussbaumer / Pied-billed Grebe (Podilymbus podiceps) on water with reflections, Fennessey Ranch, Refugio, Coastal Bend, Texas Coast, USA

Rolf Nussbaumer / Pied-billed Grebe (Podilymbus podiceps) on water with reflections. Fennessey Ranch, Refugio, Coastal Bend, Texas Coast, USA

Rolf Nussbaumer / Least Grebe (Tachybaptus dominicus) on water, Fennessey Ranch, Refugio, Corpus Christi, Coastal Bend, Texas Coast, USA

Rolf Nussbaumer / Least Grebe (Tachybaptus dominicus) on water, Fennessey Ranch, Refugio, Corpus Christi, Coastal Bend, Texas Coast, USA