Panel 1: Horned Grebe, Holboell's Grebe, Pied-billed Grebe by Louis Agassiz Fuertes https://www.rawpixel.com/image/8905427/image-watercolor-art-vintageFree Image from public domain licensePng sticker young horned grebe bird hand drawn https://www.rawpixel.com/image/2627951/free-illustration-png-baby-bird-animal-pngView licenseClass II, Order V. Lobipedes. Family Podicipidae. Horned Grebe... by Eugene S M Haines https://www.rawpixel.com/image/14257376/photo-image-plant-art-animalFree Image from public domain licenseTransparent sticker young horned grebe bird hand drawn https://www.rawpixel.com/image/2627830/free-illustration-png-duck-birdView licensePng sticker horned grebe bird hand drawn https://www.rawpixel.com/image/2627868/free-illustration-png-animal-stickerView licenseClass II, Order V. Lobipedes. Family Podicipidae. Horned Grebe... by Eugene S M Haines https://www.rawpixel.com/image/14258231/photo-image-plant-art-animalFree Image from public domain licenseHorned Grebe from Birds of America (1827) by John James Audubon, etched by William Home Lizars. Original from University of… https://www.rawpixel.com/image/277485/free-illustration-image-audubon-birds-america-public-domain-grebeFree Image from public domain licenseVector horned grebe bird hand drawn https://www.rawpixel.com/image/2692194/premium-illustration-vector-animal-artwork-avesView licenseVector young horned grebe bird hand drawn https://www.rawpixel.com/image/2705128/premium-illustration-vector-animal-artwork-avesView licenseVector young horned grebe bird hand drawn https://www.rawpixel.com/image/2691415/premium-illustration-vector-animal-artwork-avesView licenseHorned grebe-in spring (Podiceps auritus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/325953/free-illustration-image-von-wright-brothers-swedish-birdFree Image from public domain licenseYoung horned grebe (PODICEPS AURITUS) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/326324/free-illustration-image-von-wright-brothers-the-wrightFree Image from public domain licenseYoung horned grebe (Podiceps auritus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/326068/free-illustration-image-von-wright-brothers-bird-1900sFree Image from public domain license305. Horned Grebe (Podiceps cornutus) 306. Crested Grebe (Podiceps cristatus) illustration from Zoology of New York… https://www.rawpixel.com/image/329456/free-illustration-image-birds-new-york-bird-zoologyFree Image from public domain licenseYoung horned grebe (PODICEPS AURITUS) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/326192/premium-illustration-psd-america-ancient-animalView licenseYoung horned grebe (Podiceps auritus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/326123/premium-illustration-psd-america-ancient-animalView licenseHorned grebe-in spring (Podiceps auritus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/326317/premium-illustration-psd-america-ancient-animalView license