Part 55

Sub-Family 1.--The Hawk Owls (Surninæ). " " 2.--The Horned Owls (Buboninæ). " " 3.--The Owlets (Syrninæ). " " 4.--The Owls Proper (Striginæ).

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ORDER II.

PASSERES.

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TRIBE I.

GAPERS (FISSIROSTRES).

SUB-TRIBE I.--NOCTURNAL FISSIROSTRES (FISSIROSTRES NOCTURNI).

FAMILY I.--THE GOATSUCKERS (CAPRIMULGIDÆ).

Sub-Family 1.--The Oil Birds (Steatorninæ). " " 2.--The Goatsuckers Proper (Caprimulginæ). " " 3.--The Podagers (Podagerinæ)

SUB-TRIBE II.--DIURNAL FISSIROSTRES (FISSIROSTRES DIURNI).

FAMILY II.--THE SWALLOWS (HIRUNDINIDÆ).

Sub-Family 1.--The Swifts (Cypselinæ). " " 2.--The Swallows Proper (Hirundininæ).

FAMILY III.--THE ROLLERS (CORACIADÆ).

Sub-Family 1.--The Rollers (Coracianæ). " " 2.--The Todies (Todinæ). " " 3.--The Broad-throats (Eurylaiminæ). " " 4.--The Mot-mots (Momotinæ).

FAMILY IV.--THE TROGONS (TROGONIDÆ).

FAMILY V.--THE KINGFISHERS (ALCEDINIDÆ).

Sub-Family 1.--The Buccos (Bucconinæ). " " 2.--The Halcyons (Halcyoninæ). " " 3.--The Kingfishers (Alcedininæ). " " 4.--The Jacamars (Galbulinæ).

FAMILY VI.--THE BEE EATERS (MEROPIDÆ).

Sub-Family 1.--The Bee Eaters (Meropinæ).

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TRIBE II.

SLENDER-BILLS (TENUIROSTRES).

FAMILY I.--THE HOOPOES (UPUPIDÆ).

Sub-Family 1.--The Hoopoes Proper (Upupinæ). " " 2.--The Plumed Birds (Epimachinæ).

FAMILY II.--THE SUN BIRDS (PROMEROPIDÆ).

Sub-Family 1.--The Sun Birds Proper (Promeropinæ). " " 2.--The Guit-Guits (Cærebinæ).

FAMILY III.--THE HUMMING BIRDS (TROCHILIDÆ).