This is a new category, and I'm still trying to figure out which pieces should go in it. It features songs and instrumental pieces involving animals (literal or metaphorically, mythical or real). I'm leaving out pieces with just passing mentions.

Hawthorne Early Music editions: animal scores

Composer	Title	Subtitle	# Parts	Language	Mode	Files
William Byrd (c.1540-1623)	The greedy Hawk with sudden sight of lure		3	english	Ionian	Score + Parts
William Byrd (c.1540-1623)	Compel the Hawk to sit		5	english	Hypodorian	Score + Parts
William Byrd (c.1540-1623)	The nightingale so pleasant and so gay		3	english	Ionian	Score + Parts
Giovanni Gabrieli (c.1547-1612)	Se cantano gli augelli		6	italian	Mixolydian	Score + Parts
Andrea Gabrieli (c.1532-1585)	Ama l'Aquila Giove		5	italian	Dorian	Score + Parts
Pietro Vinci (c.1525-1584)	Ben fu l'ape ingegnosa		5	italian	Ionian	Score + Parts
Giaches de Wert (1535-1596)	Quel rosignol	Prima parte	6	italian	Hypodorian	Score + Parts
Giaches de Wert (1535-1596)	Vezzosi Augelli infra le verdi fronde		5	italian	Ionian	Score + Parts
Baldassare Donato (c.1530-1603)	E quando a fato l'ovo la mattina la mia gallina	La canzon della gallina	4	italian	Ionian	Score + Parts
Orlando Gibbons (1583-1625)	The Silver Swan		5	english	Ionian	Score + Parts
Orazio Vecchi (1550-1605)	Il bianco e dolce cigno		5	italian	Ionian	Score + Parts
Orlande de Lassus (c.1532-1594)	Quel rosignuol	Prima parte	5	italian	Hypodorian	Score + Parts
Giuseppe Caimo (c.1545-1584)	Mentre il cuculo		4	italian	Ionian	Score + Parts
Giovanni Croce (1557-1609)	Canzon del Cucco e Rossignuolo	con la sentenza del Pappagallo	5	italian	Ionian	Score + Parts
Adriano Banchieri (1568-1634)	Capriciata à 3 voci		3	italian	Ionian	Score + Parts
Adriano Banchieri (1568-1634)	Contraponto bestiale alla mente		5	italian	Ionian	Score + Parts
Pietro Vinci (c.1525-1584)	Un'ape esser vorrei		5	italian	Hypodorian	Score + Parts
Luca Marenzio (c.1553-1599)	Tigre mia		6	italian	Hypodorian	Score + Parts
Paolo Virchi (c.1551-1610)	Ape sacra e gentile		5	italian	Dorian	Score + Parts
Jacques Arcadelt (c.1507-1568)	Il bianco e dolce cigno		4	italian	Ionian	Score + Parts
Giandominico La Martoretta (fl.1544-66)	O fortunato augello		4	italian	Dorian	Score + Parts
Thomas Morley (c.1557-1602)	Fantasie: Il Grillo		2	instrumental	Ionian	Score + Parts
Andrea Gabrieli (c.1532-1585)	Dunque sia vero	Prima parte	7	italian	Hypodorian	Score + Parts
Marc'Antonio Ingegneri (1535/6-1592)	Almo signor ch'ai più canori Cigni		6	italian	Ionian	Score + Parts
Marco Uccellini (c.1603-1680)	L'Emenfrodito	Aria IX	3	instrumental	Ionian	Score + Parts
Orazio Vecchi (1550-1605)	The white delightful Swanne	Il bianco e dolce cigno	5	english	Ionian	Score + Parts